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Chemical Nomenclature and Chemical Formulas

Updated on January 28, 2015

Introduction

Chemistry is involved with various and diverse interactions of matter either around us or simply inside the laboratory. These are described using the language of chemistry which consists of symbols, formulas and equations.

Symbols are used as shorthand abbreviations for elements composed of a single capital letter or a capital letter and one or two small letters like H, O, Cl, Na, or Unq.

Formulas are combinations of symbols such as CO2 for carbon dioxide, C6H22O11for table sugar and HCl for hydrochloric acid.

Chemical reactions are composed of elements and compounds which are described through chemical equations using symbols and formulas.

Chemical symbols of  some elements
Chemical symbols of some elements

Chemical Symbols

Chemical symbols are shorthand abbreviations for elements composed of a single capital letter or a capital letter and one or two small letters.

Chemical Formula

Chemical formula indicates the relative number of atoms of each element in a substance. It consists of symbols of elements and subscripts which give the number of atoms of each element.

Examples:

  • The formula of water is H2O

There are 2 atoms of Hydrogen and 1 atom of oxygen

  • The formula of glucose is C6H12O6

There are 6 atoms of Carbon, 12 atoms of Hydrogen and 6 atoms of Oxygen.

In writing formulas, the total positive charges plus the total negative charges must equal to zero since the compound is electrically neutral.

Examples of common, simple and polyatomic ions
Examples of common, simple and polyatomic ions

Rules in writing formulas of compounds

There are basic rules in writing formulas of compounds. These are:

  1. Write first the symbol of the positive ion followed by the symbol of the negative ion or radical. A radical or polyatomic ion is a group of atoms which acts as a single atom.
  2. Criss-cross: the valence of the positive ion becomes the subscript of the negative ion, while the valence of the negative ion becomes the subscript of the positive ion. (You have to disregard the sign) Example: Al+3 O-2 = Al2O3
  3. If the valence is numerically equal, there is no need to criss -cross since the sum of the valence is zero. Example: Ca+2O-2 = CaO
  4. Do not write the subscript if it is only 1.
  5. If the subscript of the radical is greater than 1, the radical is enclosed with a parenthesis. Example: Mg-2PO-3 = Mg3 (PO2)2
  6. Subscripts should be reduced to the lowest ratio. Example: Sn+4 O-2 = Sn2 O4 = SnO2

How Are Compounds Named

There are several types of compounds. These are the acids, bases, salts, and oxides. This lesson will show you how to name each compound correctly.

Acids

These are compounds of weakly bonded H atoms. In solution, they release ions. A given nonmetal may form a series of acids.

Naming Acid Compounds
Naming Acid Compounds
Common Acids with their Formulas and Uses
Common Acids with their Formulas and Uses

Common Acids

HBrO3 - Bromic acid

HlO3 - Iodic acid

HClO3 - Chloric acid

HBO3 - Boric acid

HMnO3 - Manganic acid

H2SO4 - Sulfuric acid

H3PO4 - Phosphoric acid

H3AsO4 - Arsenic acid

  • Note that all acids above have names ending in ‘ic’ attached to the stem of the name of the nonmetal. The number of oxygen atoms in common acid is either 3 (column 1) or 4 (column 2). You have to remember this:

To name a series of acids formed by a given nonmetal, consider the following:

HClO4 perchloric acid

HCIO3 chloric acid

HCLO2 chlorous acid

HCIO hypochlorous acid

HCI hypochloric acid

The system adopted is as follows:

  1. The suffix ‘ic’ denotes the common acid (HCIO).
  2. The suffix ‘ous’ denotes an acid containing one less oxygen atom than the common acid (HCIO2).
  3. The prefix ‘hypo’ with the suffix ‘ous’ denotes an acid with two less oxygen atoms than the common acid (HCIO).
  4. The prefix ‘per’ with the suffix ‘ic’ denotes an acid containing one more oxygen atom than the common acid (HClO4).
  5. The prefix ‘hydro’ with the suffix ‘ic’ denotes an acid with no oxygen (HCl).

Answer the following:

1. Name the following acids:

a. HbrO2

b. HI

c. H2SO3

d. HMnO4

e. H2S

2. Write the chemical formula of the following:

a. Hydrobromic acid d. Hypoiodous acid

b. Nitrous acid e. Bromous acid

c. Periodic acid

  • Note: (c) is read as per-iod-ic acid.

Bases

These are the compounds identified by the presence of the hydroxide group (OH). Name of the metallic portion first followed by the word hydroxide.

Examples:

NaOH - Sodium Hydroxide

Fe(OH)2 - Iron(II) Hydroxide or Ferrous Hydroxide

Fe(OH)3 - Iron(III) Hydroxide or Ferric Hydroxide

The strengths and weaknesses of acids and bases

Salts

Salts are formed when metallic atoms replace the weakly bonded hydrogen atoms of an acid. They are named after the acid from which they are formed. The name of the metal comes first, followed by the name of the nonmetallic group. The ending ‘ic’ is changed to ‘ate’ and the ending ‘ous’ to ‘ite’. For salts with no oxygen atom, the prefix ‘hydro’ is dropped and ending ‘ic’ is changed to ‘ide’.

For example, the acid HNO3 (nitric acid) forms the salt KNO3 (potassium nitrate), when the metallic atom K places H atom of the acid. As another example, the acid HNO2 (nitrous acid) forms the salt KNO potassium nitrate). The ending ‘ous’ of the acid is changed to ‘ite’.

HI (hydroiodic acid) forms the salt KI (potassium iodide). Since there is no more hydrogen atom in the salt, the prefix “hydro” of the acid name is dropped. The ending ‘ic’ of the acid is changed to “ide’ in salt.

♦ Consider the following series:

NaClO4 - Sodium Perchlorate

NaClO3 -Sodium Chlorate

NaClO2 - Sodium Chloride

NaClO - Sodium Hypochloride

NaCl - Sodium Chloride

These salts are formed by replacement of the H of the series of acids.

♦ Give the name of each of the following salts:

a. K2SO4 d. Lil

b. Ca3(PO4)2 e. KmnO4

c. Na2CO3

♦ Write the chemical formula of:

a. Sodium Nitrate

b. Magnesium Chloride

c. Calcium Sulfite

d. Sodium Hypobromite

e. Ammonium Periodate

When a metal has a variable oxidation number, its name is followed by the oxidation number written in Roman numeral enclosed in parenthesis. The old method used the stem of the Latin name and the suffixes ‘ous’ and ‘ic’ for the lower and higher states, respectively.

Examples:

FeCI2 – iron (II) chloride or ferrous chloride

FeCI3 – iron (III) chloride or ferric chloride

Other Metallic Ions with Variable Oxidation Number

Sn
+2
tin(II) or stannous
Sn
+4
tin(IV) or stannic
Hg
+1
mercury(I) or mercurous
Hg
+2
mercuric(II) or mercuric
Cu
+1
copper(I) or cuprous
Cu
+2
copper(II) or cupric
Au
+1
gold(I) or aurous
Au
+3
gold(III) or auric
Pb
+2
lead(II) or plumbous
Pb
+4
lead(IV) or plumbic

Acids, Bases and Salts

Oxides

Oxides are compounds of oxygen with metals or nonmetals. Name the metal or the nonmetal first. Then use the prefixes di, tri, tetra or penta before the term oxide to indicate the number of oxygen atoms present. In case where the number of oxygen atom present can determine from oxidation number of the combined metal, the prefix is omitted.

Examples:

NO2: Nitrogen Dioxide

N2O4: Dinitrogen Tetroxide

P2O5: Phosphorus Pentoxide

PbO: Lead(II) oxide or Plumbous Oxide

PbO2: Lead(IV) oxide or Plumbous Oxide

Questions for Study and Review

I. Name the following compounds by identifying the oxidation number of the metal as you name the compounds listed below:

  1. CoBr2
  2. PbS
  3. CrSO4
  4. Fe(NO3)2
  5. Sn(ClO4)3

II. Formula Writing: Write the correct chemical formula of the following:

  1. Calcium carbonate
  2. Magnesium hydroxide
  3. Copper sulfate
  4. Carbon tetrachloride
  5. Potassium bromate
  6. Ammonium hydroxide
  7. Lead nitrate
  8. Sulfuric acid
  9. Nitric acid
  10. Boric acid


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    • Rene Briane profile image

      Rene Briane 4 days ago

      Rene Briane G. Angeles

      BSEEC - III

      acid, salt, bases and oxide that is the 4 things that we need to remember . acids are the chemicals that have "H" on the end of the chemical symbol. bases are the chemical that have "OH" in the end of the chemical symbol. salt are the chemicals that has no "OH" and "H" in the chemical symbols. and oxide are the chemicals that has oxygen.

    • profile image

      Melencio, Marc James 5 days ago

      Melencio, Marc James

      Tourism

      Chemical nomenclature is a set of rules to generate systematic names for chemical compounds. Chemical formula is an expression which states the number and type of atoms present in a molecule of a substance. The type of atom is given using element symbols. The number of atoms is indicated by a subscript following the element symbol.

    • profile image

      Christian Paul V. Ogorida BSCE II 5 days ago

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).

      The IUPAC's rules for naming organic and inorganic compounds are contained in two publications, known as the Blue Book and the Red Book,respectively. A third publication, known as the Green Book, describes the recommendations for the use of symbols for physical quantities in association with the IUPAP while a fourth, the Gold Book, contains the definitions of a large number of technical terms used in chemistry. Similar compendia exist for biochemistry the White Book, in association with the IUBMB, analytical chemistry the Orange Book, macromolecular chemistry the Purple Book and clinical chemistry the Silver Book. These "color books" are supplemented by shorter recommendations for specific circumstances that are published

    • profile image

      Christine San Gabriel BSN1 5 days ago

      Each compound has their own formulas.This topic taught me how to read,name and write formulas.Every different compound has different component.Chemical equations and formulas are the language of chemistry.

    • Ronniel Legaspi profile image

      Ronniel Legaspi 5 days ago

      LEGASPI, RONNIEL AERON R. BSEEC-3 Knowing the kinds of chemical is very useful to us because chemical is we use daily like the food we ate, like the things we use in our daily life like ballpen, plastic and etc. As a future engineer it is very useful like using cement in building bridge or etc.

    • Kensanc profile image

      Kensanc 5 days ago

      Sanciangco,Kenneth Philip H.

      BSHM-3

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds.The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to each chemical name should refer to a single substance. A less important is to ensure that each substance has a single name, although a limited number of alternative names is acceptable in some cases.

    • Camille San Mateo profile image

      Camille San Mateo 5 days ago

      SAN MATEO, CAMILLE C.

      BSN-1

      Chemistry is very useful in our everyday lives. Knowing the language of chemistry which consists of symbols, formulas, and equations makes everything easy like naming compounds. But long before chemists knew the formulas for chemical compounds, they developed a system of nomenclature that gave each compound a unique name. Nomenclature is important because it help us to come up with the name for an object. And knowing the names of those chemicals give us the idea of their uses.

    • Bryan Pangilinan profile image

      Bryan Pangilinan 5 days ago

      Bryan P, Pangilinan

      BSHM 4-2

      This topic Chemical Nomenclature and Chemical Formulas is indeed important for us. Because without these formulas how will you equate or find the answer of the given equations? there is no need to memorize every formula, familiarizing this would be enough. This is not just for us tourism students but also in other courses. Now, this is important in our field because how will we know the names of the chemicals that we about to handle, also how dangerous can this be. That's why it's that important.

    • profile image

      Teddy Gullem 6 days ago

      Chemical nomenclature is a systematic rules for naming chemical compounds. It is basically a tool used to shorten the names of the chemical names of elements and compounds. Which is if done right.

    • profile image

      Danica Vipinoza 6 days ago

      Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds.

      In a chemical equation, the formula represents one mole of a reactant or product. Having connection in teaching, teachers might have diverse students. Different cultures, personalities, and names. Every teacher must know the name of his students and be able them to differentiate. Each name has its own origin and it should be accepted and respected.

    • Jasper Sierto profile image

      Jasper Sierto 6 days ago

      Sierto, Jasper L.

      BSHM - 3

      As far as I know Chemical Nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. This section is designed to help you review some of those rules and conventions. Oxidation and Reduction. Forming Ionic Compounds.

    • gonzalesjabs profile image

      Javy Paul Gonzales 6 days ago from San Ildefonso Bulacan

      GONZALES,JAVY PAUL S.

      BSHM 3

      Chemical nomenclature is the process of giving unambiguous chemical formulas or chemical names to elements and compounds.When forming compounds, it is important to know something about the way atoms will react with each other. When we are cooking we should know on how much heat is needed to cook the food. Chemical nomenclature is one of the important part we need to study.

    • profile image

      RUSSELL BERNARDINO BSTM4 7 days ago

      Chemical Formulas are super useful. They identify the reactants and products in a chemical reaction. Reactants are the starting materials; they're the atoms and molecules that we start with and are always located on the left hand side , There are different type of chemical formula such as molecular formula, empirical formula, and formula unit.

      Without getting into the detail of any one of them, chemical formula tells us what elements are in the molecule or chemical compound. It is a representation of the substance on paper.

    • Jolina Gabriel profile image

      Jolina Gabriel 8 days ago

      Jolina L Gabriel

      BsN -1

      Chemical Nomenclature, in simple terms, is the proper naming of elements and compounds (acids, salts, bases, and oxides) that makes up chemical equations in chemical reactions. Without symbols for elements, it is then impossible to make chemical formulas for compounds. This naming system is very important for without it we won't know which is which and what is what. In experiments, if the components needed have no labels or names, how could we possibly identify what are we going to add or mix in a chemical solution. This may give rise to confusion and confusion will result to failure and possible lab accidents. That's why knowing each of these names for elements and compounds is significant.

    • davejshv profile image

      Dave Joshua Villangca 8 days ago

      Dave Joshua B. Villangca

      BSN-I

      Baliuag University

      General Chemistry

      T, F 7:30-12:00

      The periodic table of elements is the heart of chemistry. In this link, I learned that the chemical symbols and chemical equations are the language of chemistry. Compound is made up of two or more elements. Compounds can be classified as acid, base, salts, and oxides. It's an acid if a compound has an "H" as a first letter. It's base if it has OH. It's salts if it has no "H or OH". Lastly, a compound is an Oxide if it has "O". I also learned in this link how to name a compound and how to make it a chemical formula based on its atomic structure and valence in terms of criss-cross method and other procedures or rules. This link truly helps me as a student to understand chemistry more.

      As a nurse, it's important to know first the nature of the medicines or how it was formed before we give it to our patients for us to give them the best and excellent service possible.

    • profile image

      TORIBIO, PAULINE LOUISE A. 8 days ago

      TORIBIO, PAULINE LOUISE A.

      BSN I

      Naming and classification of compounds are somewhat the basic part of chemistry. As the title says "Chemical Nomenclature and Chemical Formulas", I have learned how to name, read and classify compounds. For just one link I have learned a lot. Why do we have to learn about this? It is simply because, everyday we are using them and not knowing their composition or structure may harm us. We also should learn about them because we have to innovate and make living better.

    • Gil Calderon profile image

      Gil Calderon 8 days ago

      Many compounds exist as molecules. In particular, when nonmetals connect with other nonmetals, the compound typically exists as molecules. Furthermore, in some cases there are many different kinds of molecules that can be formed between any given elements, with all the different molecules having different chemical and physical properties. How do we tell them apart? The answer is a very specific system of naming compounds, called chemical nomenclature. By following the rules of nomenclature, each and every compound has its own unique name, and each name refers to one and only one compound.

    • Bianca Bernardo profile image

      Bianca Bernardo 12 days ago

      MARUCOT, KATRINA BIANCA BSN1

      Chemical Equations, Formulas are the known as the language of chemistry. Having knowledge on how to properly name chemicals are essential to those in the Medical Field as this is the backbone of creating new medicine and innovation to better the lives of us human beings and cure diseases. Not only in medicines, but everything in this world as we know it have their own chemical names and formulas.

    • Jucel Salvador profile image

      Jucel Salvador 5 months ago

      Salvador, Jucel Roma M.

      BEED-II (Inorganic Chem)

      TF/12:30-2:00/CS 105

      Nomenclature is the systematic approach to naming chemical compounds. This is only concerned with naming very simple compounds. There are several types of compounds. These are the acids, bases, salts, and oxides. On the other hand, chemical formula is the representation of the composition of compounds. It contains the symbol and formula of elements or radicals and the number of atoms of each element. In writing formulas, we should know the correct symbols of element and radicals. Valence denotes the number of electrons in the outermost energy level while radicals are group of elements which act as one or a single atom. Also, there are rules to be followed in writing formulas. As a future educator, it is important to understand the lesson well and be able to write formulas, balance chemical equations and even calculate the percentage composition of a compound for our future students to learn.

    • Zipagan profile image

      Zipagan 6 months ago

      Dhaina Marie B. Zipagan (BAC-II)

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. Chemists use specific rules and "conventions" to name different compounds. When forming compounds, it is important to know something about the way atoms will react with each other. One of the most important manners in which atoms and/or molecules react with each other is the oxidation/reduction reaction. Oxidation/Reduction reactions are the processes of losing and gaining electrons respectively.

      As a mass communication student, we should know how to follow the rules in making article because we offer information and build a relationship with your newsletter subscribers and to give your clients a deeper understanding on a topic.

    • Maniella de Leon profile image

      Maniella de Leon 7 months ago

      De Leon, Maniella Assumpta M.

      BEED-II BSC206B (Inorganic Chemistry/ TF/ 12:30-2:00/ CS 105)

      It is necessary to know the names of the chemicals for it gives us the idea of their uses. Naming chemicals is as important as knowing my future students by name. So, I will be able to record correctly their grades according to their performance.

    • mariseperez08 profile image

      mariseperez08 7 months ago

      Niña Marise V. Perez

      BEED-II

      BSC206B (Inorganic Chemistry)

      TF-12:30-2:00pm/CS105

      Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. This section is designed to help you review some of those rules and conventions. The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to: each chemical name should refer to a single substance. A less important aim is to ensure that each substance has a single name (although a limited number of alternative names is acceptable in some cases). The form of nomenclature used depends on the audience to which it is addressed. As such, no single correct form exists, but rather there are different forms that are more or less appropriate in different circumstances. A common name will often suffice to identify a chemical compound in a particular set of circumstances. However, in a few specific circumstances (such as the construction of large indices), it becomes necessary to ensure that each compound has a unique name.

      In discussing chemistry nomenclatures is it necessary to identify the type of compound including stoichiometry and type of constituent atoms. The first separation of importance is to distinguish between inorganic and organic compounds. Unfortunately, this separation is not always clear. even to experienced chemists. Historically (two centuries ago) the definitions were that inorganic compounds were synthesized by geological systems and organic compounds were found in biological systems. The modern definitions argues that organic compounds are any molecule containing carbon and by default this means that inorganic chemistry deals with molecules lacking carbon. The confusion arise when chemists that study carbon based materials like diamond or graphite, but that argument is beyond the scope of this text. The following sections presents the current nomenclature rules for inorganic and organic molecules.

    • Maria Luz Mendoza profile image

      Maria Luz Mendoza 7 months ago

      Ma. Luz Mendoza (BEEDII)

      The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning to what chemical compound the name refers. Each chemical name should refer to a single substance. Today, scientists often refer to chemicals by their common names: for example, water is not often called dihydrogen oxide. However, it is important to be able to recognize and name all chemicals in a standardized way. Molecular compounds are made when two or more elements share electrons in a covalent bond to connect the elements. Typically, non-metals tend to share electrons, make covalent bonds, and thus, form molecular compounds. Having relation to my course it is important to know our students each or one by one as what and who they are.

    • Jahna Carmella profile image

      Jahna Carmella 7 months ago

      Jahna Carmella B. Galvez

      BEED-II

      BSC 206B (Inorganic Chemistry TF 12:30-2:00/CS 105)

      chemical nomenclature is a set of rules to generate systematic names for chemical compounds. When forming compounds, it is important to know something about the way atoms will react with each other. One of the most important manners in which atoms and/or molecules react with each other is the oxidation/reduction reaction. Oxidation/Reduction reactions are the processes of losing and gaining electrons respectively; oxidation numbers are assigned to atoms and compounds as a way to tell scientists where the electrons are in a reaction. It is often referred to as the "charge" on the atom or compound. The oxidation number is assigned according to a standard set of rules, knowing the oxidation number of a compound is very important when discussing ionic compounds. Ionic compounds are combinations of positive and negative ions. They are generally formed when nonmetals and metals bond, as a future educator we must remember the names of our student and not give them a name that can embarrass or can humiliate them.

    • profile image

      Villaroman 7 months ago

      Villaroman Nikki D.C. BEED III

      BSC206b (T/F 12:30-2:00/CS 105)

      Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. The first chemical nomenclature was developed in 1787 by a commission of French chemists under the chairmanship of A. L. Lavoisier. Before that, a substance was named according to arbitrarily chosen criteria, for example, the method of production, the name of the discoverer, or some property.In relation to education we should always remember that students have different learning styles that we should consider for them to reach their maximum learning potential.

    • JosephineLopez04 profile image

      JosephineLopez04 7 months ago

      Josephine V. Lopez

      BEEd-ll

      BSC 206 (Inorganic Chemistry TF 12:30-2:00)

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC). Chemical nomenclature consists of different symbols of elements and subscript. The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to each chemical name should refer to a single substance.

    • Elize Bantang 14 profile image

      Elize Bantang 14 7 months ago

      Merle, Eliza B.

      BEEd-ll

      BSC 206 (Inorganic Chemistry TF 12:30-2:00)

      Chemical nomenclature is at least as old as the pseudoscience of alchemy, which was able to recognise a limited number of reproducible materials. Chemical formula indicates the relative number of atoms of each element in a substance. It consists of symbols of elements and subscripts. Chemical symbols are shorthand abbreviations for elements. There are several types of compounds, these are the acids, bases, salts, and oxides In writing formulas of compounds there are some basic rules. In relation to my course, it is necessary to know further and to learn more about our future learners' behaviour, family background and how they collaborate other peers and to other people.

    • Cristina Perez profile image

      Cristina Perez 7 months ago

      Perez, Ma. Cristina M. (BEED-II)

      Chemical nomenclature is concerned with naming chemical compounds and writing their formulas. A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. A chemical formula is an expression which states the number and type of atoms present in a molecule of a substance. The type of atom is given using element symbols. The number of atoms is indicated by a subscript following the element symbol. Naming compounds using a fixed set of rules is important so that all compounds are recognized globally by the same name to avoid confusion and misunderstanding. Compounds are named so as to distinguish one compound from another. At times the chemical name of a compound is very long and so to communicate better, a common word/name is used instead. Compounds have a common name, a proper name and chemical formulae. A chemical formula clearly shows the composition of a substance. It not only reveals the identity of the constituent elements, but also their fixed ratio by mass. The chemical formula also stands for one molecule of a substance.

      In a chemical equation, the formula represents one mole of a reactant or product. Having connection in teaching, teachers might have diverse students. Different cultures, personalities, and names. Every teacher must know the name of his students and be able them to differentiate. Each name has its own origin and it should be accepted and respected.

    • Carmela Perez profile image

      Carmela Perez 7 months ago

      Perez, Ma. Carmela M.

      (BEED-II)

      BSC 206B (Inorganic Chemistry TF 12:30-2:00/ CS 105)

      Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds while chemical formula is a representation of a substance using symbols for its constituent elements. Knowledge on chemical nomenclature will really have a great impact on us, future teachers because one thing that will help us to be an effective teachers is knowing the name of our students. Knowing how to pronounce them properly and call them with their names. By this, students will feel special and the teacher will be appreciated because they know that their teacher is exerting efforts in memorizing their names. Knowing our students is one of the many factors that will help us succeed in teaching.

    • Jucel Salvador profile image

      Jucel Salvador 7 months ago

      Salvador, Jucel Roma M.

      BEED-II

      BSC 206B (Inorganic Chemistry TF 12:30-2:00/CS 105)

      Nomenclature is the systematic approach to naming chemical compounds. This is only concerned with naming very simple compounds. There are several types of compounds. These are the acids, bases, salts, and oxides. On the other hand, chemical formula is the representation of the composition of compounds. It contains the symbol and formula of elements or radicals and the number of atoms of each element. In writing formulas, we should know the correct symbols of element and radicals. Valence denotes the number of electrons in the outermost energy level while radicals are group of elements which act as one or a single atom. Also, there are rules to be followed in writing formulas. As a future educator, it is important to understand the lesson well and be able to write formulas, balance chemical equations and even calculate the percentage composition of a compound for our future students to learn.

    • Vivianjane Mempin profile image

      Vivianjane Mempin 7 months ago

      Vivian Jane M. Mempin

      BAC-II

      Gen.Chem. (TF/7:30-12:00/CS301)

      Chemical Nomenclature, in simple terms, is the proper naming of elements and compounds (acids, salts, bases, and oxides) that makes up chemical equations in chemical reactions. Without symbols for elements, it is then impossible to make chemical formulas for compounds. This naming system is very important for without it we won't know which is which and what is what. In experiments, if the components needed have no labels or names, how could we possibly identify what are we going to add or mix in a chemical solution. This may give rise to confusion and confusion will result to failure and possible lab accidents. That's why knowing each of these names for elements and compounds is significant.

      In the field of communication, identification and classification of information is really of great significance. If we don't identify which information came from which or whoever, then it's like palgiarism or lying. We also have remember names of different personalities.

    • Jole Ymenel Tila profile image

      Jole Ymenel Tila 2 years ago from Pulilan, Bulacan

      Tila Jole Ymenel F. BUHM

      The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which a chemical compound the name refers to, each chemical name should refers to a single substance. The names also conveys some information about the structure or chemistry of a compound. Also important aim is to ensure that each substance has a single name, although a limited number of alternative name is acceptable in some cases.

    • Paulo Tomas profile image

      Paulo Tomas 2 years ago

      TOMAS J P BUHM

      Knowing the scientific and chemical term of the products we are using in the industry is very important. For we can use a substance we think that is not harmful but it is. It is essential to identify different names and formulas of chemical to avoid hurtful encounter with it.

    • Castro F C BUTM profile image

      Fatima Cruz Castro 2 years ago

      7 CASTRO F C BUTM 2014

      Chemical nomenclature and Chemical formula are so important in our field because this is a set of chemical names. we should know about this specially as a tourism student. and this is a part of chemistry that we need to know.

    • profile image

      Zyrine Mae Taruc 2 years ago

      Taruc, ZM, BUTM 2014

      It is a set or system of names or terms, as those used in a particular science or art, by an individual or community, etc. And it can be apply in tourism industry to named the following equipments that are being used.

    • profile image

      Clarenz Maximo 2 years ago

      21 MAXIMO, CR BUTM

      Chemical formula is an easy way of expressing information about the atoms that constitute a particular chemical compound, and how the relationship between those atoms changes in chemical reactions.

    • Rad Mesina profile image

      Rad Mesina 2 years ago from Calumpit, Bulacan

      23 MESINA, DJ BUHM

      name and formulas are part of our daily life. it can also relate to our life which we can used it as a basis to understand how atoms or chemicals form, to know the abbreviation of their names and how it will react if we apply the formulas.

    • profile image

      Phoebe Sp 2 years ago

      In a chemical reaction, it is important to be precise and also to be balanced. We should be very careful in balancing a chemical reaction so we can have a proper experiment.

    • jairafulgencio profile image

      jairafulgencio 2 years ago

      Fulgencio JM BUTM 2014

      A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound.

    • yuriannesantos profile image

      yuriannesantos 2 years ago

      35 Santos, YA BUTM 2014

      Chemical Formulas are important for us bcs there are chemicals needed to combine in beverages or food so formulas are important for us to know how much chemical is required to be in that specific meal.

    • profile image

      28Quizon,CA 2 years ago

      Chemical nomeclature is one of the important part we need to study.These are described using the language of chemistry which consists of symbols, formulas and equations

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      MARCELO, JME BUTM2015 2 years ago

      The formula tells you the correct ratio of each element in the compound. Any questions that involve "how much" will require you to know and use this proper ratio. Combinations of the same elements but in different ratios produce compounds with different properties.

    • Elli Rose Gabriel profile image

      Elli Rose Gabriel 2 years ago

      1 BALELA, E.G BUTM 2014

      in the field of tourism industry chemical formula is a serious thing to talk about because it may cause a dangerous accident for others if they didn't know the uses of chemicals and it's importance. So we need to be aware of what chemical formula will affect our job in the future.

    • Melanie Samson profile image

      Melanie Samson 2 years ago

      31 SAMSON, MH BUTM2014-2015

      I think the importance of this study in my field is to help us identify different types of chemicals that we may encounter into kitchen and other places concerning our course.

    • profile image

      Mary Rose Banzon 2 years ago

      I think this matter was important in our industry. I have a chemistry subject and this information is important in my learning.

    • profile image

      Marife DG. Montejo 2 years ago

      Learning about different chemicals is really important in our field for us to identify the chemical we may encounter in the future if we are already working.

    • Capanas MJ BUHM profile image

      Capanas MJ BUHM 2 years ago

      Capanas MJ BUHM

      Chemical nomeclature is one of the important part we eed to study. These are describe equation these will hepl preparing foods.

    • Agnes Sato profile image

      Agnes Sato 2 years ago from Baliuag, Bulacan

      36 SATO, MA BUTM

      It is very important in my field to have this chemical nomenclature and chemical formulas if we are having our jobs. To identify its field and to easily define its components that is sum up there.

    • Heidi Valerio profile image

      37ValerioMMBUHM 2 years ago

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds.

    • Julien Villanueva profile image

      Julien Villanueva 2 years ago

      Villanueva Julien / BSHM 2014 -2015

      Knowledge of different chemicals that we might be using in the future is really important for us. With this knowledge we could avoid doing something wrong with the chemicals and use it more efficiently.

    • profile image

      john angelo oretga bshm2 2 years ago

      it was very important for me as an hm student because when it comes to our industry, it was very much needed to know the different chemicals we are using.

    • Carlo Buencamino profile image

      Jan Carlo Buencamino 2 years ago from Banga 2nd Plaridel Bulacan

      Chemical nomenclature is very important to easily identify the chemicals / ingredients

    • profile image

      John Andrew Cabrera 2 years ago

      If we are knowledgeable about this we can easily identify the possible effect of the chemicals to each other.

    • profile image

      John Andrew Cabrera 2 years ago

      If we are knowledgeable about this we can easily identify the possible effect of the chemicals to each other.

    • profile image

      John Carlo Viola 2 years ago

      The chemical nomenclature is also helpful in hospitality management. Through chemical nomenclature we know the names of the chemicals to be used before we use. We know how the chemicals we use are harmful or not.

    • Glenric Samaniego profile image

      Glenric Samaniego 2 years ago

      Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. This section is designed to help you review some of those rules and conventions. You have to be familiar with every chemical you are about to use.

    • profile image

      Eimon Paolo 2 years ago

      It is important to know formulas and equation because there are so many bad things that will happen if we don't know the right formula or combinations of what we do.

    • simplyariannejoy profile image

      simplyariannejoy 2 years ago

      17 Flores, AJ BUHM

      Chemical Nomenclature is studying of symbol and names of formula like periodic table is condider of all of number and names of symbol. examples. hyrogen name of formila, 1 of atomic number and symbol is H. and connect of course in tourism management because learn of symbol of languages from about country like hydrogen oxygen and carbon and connect of the people from the in airport and airplane.

    • Winnie Aquino profile image

      winnie rose inoncillo aquino 2 years ago from San Rafael, Bulacan

      2 Aquino, WR BUHM 2014

      To know and to understand the Chemical Nomenclature and Chemical Formulas is very important because to be able to perform any experiments is you should know what kind of materials you are using for you to get the correct results and correct answers.

    • renzocauzon profile image

      renzocauzon 2 years ago

      It is important for us HM students to study the different chemistry languages like symbols, formulas and equation. It is important in our field because how will we know the names of the chemicals that we about to handle, also how dangerous can this be. So let us study this because it is important.

    • simplyariannejoy profile image

      simplyariannejoy 2 years ago

      17 Flores, AJ BUHM

      Chemical Nomenclature is studying of symbol and names of formula like periodic table is condider of all of number and names of symbol. examples. hyrogen name of formila, 1 of atomic number and symbol is H. and connect of course in tourism management because learn of symbol of languages from about country like hydrogen oxygen and carbon and connect of the people from the in airport and airplane. This topic Chemical Nomenclature and Chemical Formulas is indeed important for us. Because without these formulas how will you equate or find the answer of the given equations? there is no need to memorize every formula, familiarizing this would be enough. This is not just for us tourism students but also in other courses. Now, this is important in our field because how will we know the names of the chemicals that we about to handle, also how dangerous can this be. That's why it's that important.

    • Richmond V profile image

      Richmond V 2 years ago from Bustos, Bulacan

      Knowing the names and different combination of chemicals is very important because it is one of the basic thing in chemistry and it is always needed to know to right name of chemicals to use it correctly.

    • Patricia Rivera profile image

      Patricia Rivera 2 years ago

      Chemical nomenclature is one of the important part we need to study.These are described using the language of chemistry which consists of symbols, formulas and equations.these will help us in preparing food. Which is really can be applied in Tourism Management.

    • Cess Capulong profile image

      Cess Capulong 2 years ago

      Chemical nomenclature is the study of symbols and things related to numbers. Binary Covalent Compounds, Binary Ionic Compounds, Ionic Compounds with Polyatomic Ion(s), and Ionic Compounds with Polyatomic Ion(s) are some of the formulas we can apply to it.

    • Joyce De Guzman profile image

      Joyce De Guzman 2 years ago from San Ildefonso, Bulacan

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. Using chemical without knowing their components and name is like drinking a medicine without the prescription of your doctor, that medicine may harm or cure your body. In relation to our industry we are making use of chemicals in maintaining the facilities and furniture of our hotel and restaurant and that chemical may harm our body if we don't know the components and proper preparation and using of those and it can also risk the health of our guest.

    • profile image

      kennethCorpuz 2 years ago

      Chemical Nomenclature is studying of symbol and names of formula like periodic table is condider of all of number and names of symbol. examples. hyrogen name of formila, 1 of atomic number and symbol is H. and connect of course in tourism management because learn of symbol of languages from about country like hydrogen oxygen and carbon and connect of the people from the in airport and airplane.

    • AlmiraEvangelista profile image

      AlmiraEvangelista 2 years ago

      Evangelista, Almira

      BSTM l-l

      I had no any ideas about this topic, but when I've finished reading and understanding it I've learned something about Chemical Nomenclature and Chemical formulas in our daily life, that it can be shown the bases on how we live in this world.

    • profile image

      Erica Joy Garcia 2 years ago

      16 Garcia EJM BUTM14

      As a tourism student we have to know something about the chemical we are using we have to know their abbreviations and their uses. in that way. we are knowlwdgeable about them when we encounter them in the future.

    • AndreaBarcita profile image

      AndreaBarcita 2 years ago

      3 BARCITA AR M. BUHM14

      We must Know the names and different formulas of chemicals because if we are assigned to housekeeping. And were going to use a liquid chemical for cleaning we should know if it’s ok to use or not. Because if we don’t know, the physical appearance of the furniture can be destroyed

    • KadowakiTBUHM profile image

      Takako Kadowaki 2 years ago

      21 Kadowaki T BUHM 14

      The Chemical Nomenclature and Chemical formula is important because it is the knowledge to know the balance formula for chemicals. If we are knowledgeable about this we can easily identify the possible effect of the chemicals to each other.

    • Cea Castillo profile image

      Cea Castillo 2 years ago

      It is important for us to know how and where a chemical is made for us to know if its safe or not.

    • profile image

      Enis 2 years ago

      Keep on writing in English, maybe GAP will evnuetally notice your blog and pay some attention... and then he'll go and tell his minister of justice to conjure up some law prohibiting the spread of anti-green propaganda including it in the coined word εχθροπάθεια , ha-ha!

    • profile image

      brillant joshua Dela Cruz 2 years ago

      The knowledge of it is very useful when we our dealing with chemicals especially when we our cooking and cleaning.

    • Carl patrick tan profile image

      Carl patrick tan 2 years ago

      33 TAN BUHM

      Chemical nomenclature shows how a chemical compound was formed. just like dealing with chemicals and food in our field we should know how that particular chemical was formed and made. From now, I have learned something on the topic about Chemical Nomenclature and Chemical formulas in our daily life, that can be show the bases on how we living in this world

    • Rolyn Santos profile image

      Rolyn Santos 2 years ago from Bustos, Bulacan

      Santos, Mary Rolyn L. BSHM

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide and chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, and plus (+) and minus (−) signs.

    • johncarl ballents profile image

      johncarl ballents 2 years ago from San Rafael, Bulacan

      Ballentes johncarl bshm

      Chemical Nomenclature and Chemical Formulas Is Very important on Hm Student Because We Need To know The Name And formulas That We Are Dealing and Also In Food We need To Know The Name Of the food that We are preparing.

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      Erwin pascual 2 years ago

      In naming chemical we prevent to have an accident when we are dealing chemical, using nomenclature we can apply it in our course of Hospitality Management by naming all part of hotel or in fast food chain.

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      Mary Rose Banzon BSTM1-1 2 years ago

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).

    • AngelicaBSHM1-1 profile image

      AngelicaBSHM1-1 2 years ago

      Chemical Nomenclature is important to our study for us to know what is really happening to the food that we are cooking. For us to know what will happen when we mix something, what it would gonna be, thus it is good or dangerous. For us to know that some stuffs are not meant to be mixed while some are good when mixed.

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      27 PARUNGAO, GT BUTM 2015 2 years ago

      Chemical Nomenclature is the process of giving unambiguous chemical formulas or chemical names to elements and compounds. It is important to recognize that the rules of systematic nomenclature need not necessarily lead to a unique name for each compound, but must always lead to an unambiguous one.

    • Jonna Mae Book profile image

      Jonna Mae Book 2 years ago

      04 BOOK, JM BUTM 2014

      This topic Chemical Nomenclature and Chemical Formulas is indeed important for us. Because without these formulas how will you equate or find the answer of the given equations? there is no need to memorize every formula, familiarizing this would be enough. This is not just for us tourism students but also in other courses. Now, this is important in our field because how will we know the names of the chemicals that we about to handle, also how dangerous can this be. That's why it's that important.

    • Melanie Samson profile image

      Melanie Samson 2 years ago

      31, SAMSON MH BUTM2014-2015

      Chemical Nomenclature and Chemical Formulas is very important for us tourism students. Why? It is because we may encounter different kinds of chemicals in our chosen fields, therefore this formulas may help us to distinguish what group of chemicals we are encountering with. The main purpose of this formulas is for us to prepare ourselves into the growing industry of tourism mainly, in hospitality management.

    • Klaudine Bianca profile image

      2AlcantaraMMBUHM 2 years ago

      02, KLAUDINE ALCANTARA, BUHM

      chemical nomenclature is important in Hospitality Management .Chemical nomenclature is one of the important part we need to study.These are described using the language of chemistry which consists of symbols, formulas and equations.these will help us in preparing food.

    • profile image

      pantan,jlbuhm 2 years ago

      It is important in Hospitality Management because it can help us to estimate on how may sunstances we were using for food and beverages. So that, we cannot harm our guest.

    • Joshua Lim Calma profile image

      Joshua Lim Calma 2 years ago from San Miguel Bulacan

      CALMA JOSHUA

      The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).

    • profile image

      michael baylon 2 years ago

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry.

    • profile image

      Miguel Panlilio 2 years ago from Baliuag Bulacan

      PANLILIO, MAR BUHM1

      Chemicals are technically a basic part of our life. being familiar with chemicals and its proper uses are very important. chemicals can be dangerous if not used properly. for hotels and restaurants knowing the right mixture of different chemicals is a must learn.chemicals are a big part of Hotel industry.

    • Rad Mesina profile image

      Rad Mesina 2 years ago from Calumpit, Bulacan

      23MESINA, DJ BUHM

      Many chemicals are so much a part of our life that we know them by their familiar names, just like our other friends. And many items that are using in hotels contain chemicals that are commonly used. Some chemicals are edible while other compounds would be poisonous to consume. That’s why, it is really important to recognize each one of them for our safety.

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      HONEYGRACE sALONGA 2 years ago

      21 SALONGA HGC. BUHM14

      The relevance of Chemical Nomenclature and Chemical formulas in our course we can know how to get or identify the different chemicals we are using in a laboratory not just the Chemical Laboratory but also in the Food Lab. that we, Hospitality Management Students especially when we are cooking; And as Housekeeper we also use different chemicals in Cleaning different kinds of dirt, and we have different cleaning chemicals that we need to use because that is the only cleaning chemicals that will exactly remove it's dirt.

    • profile image

      HoneyGrace Salonga 2 years ago

      The relevance of Chemical Nomenclature and Chemical formulas in our course we can know how to get or identify the different chemicals we are using in a laboratory not just the Chemical Laboratory but also in the Food Lab. that we, Hospitality Management Students especially when we are cooking; And as Housekeeper we also use different chemicals in Cleaning different kinds of dirt, and we have different cleaning chemicals that we need to use because that is the only cleaning chemicals that will exactly remove it's dirt.

    • profile image

      Arel Zcirem 2 years ago

      8 CANIMO AZ B BUHM 2015

      it is important for us to know because it helps us to identify the chemicals that we use like in our course we need to know the chemicals especially when we are cooking and cleaning.

      Chemical names and formulas that follow the rules of this committee are said to follow IUPAC no menclature.

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds.

    • profile image

      remkhim16@yahoo.com 2 years ago

      8 CANIMO AZ B BUHM 2015

      it is important for us to know because it helps us to identify the chemicals that we use like in our course we need to know the chemicals especially when we are cooking and cleaning.

      Chemical names and formulas that follow the rules of this committee are said to follow IUPAC no menclature.

      A chemical nomenclature is a set of rules to generate systematic names for chemical compounds.

    • profile image

      Janice Gonzales 2 years ago

      17 Gonzales JB BUTM 2014

      Chemical nomenclature and chemical formula is important in the study of tourism management to know the different kind of formula and chemicals.

    • Mikaela Alavar profile image

      1Alavar, MM BUHM 2 years ago from Villa Katrina, Tangos Baliwag Bulacan

      1ALAVAR, MM BUHM

      Chemistry can seem like an overwhelming subject. But in relevance on our field if we look at it as similar to cooking or baking a cake, we can get a better understanding of the material. And helps us more in looking for the right and needed chemicals and the difference between them all.

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      19 GARCIA RGBUHM 2 years ago

      Chemica nomenclature and chemical formulas is very important in the study of hospitality management because it helps us understand and differentiate the differences of the chemicals.

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      Sanguyo nicko 2 years ago

      Knowing the chemical name is very important to us. it may help us to know what is the content of that chemical we use. Like in the Hotel you must know the chemicals we use and preservatives.

      28 SANGUYO NSBUHM

    • profile image

      Johnmarverickr 2 years ago

      REYES, MARVERICK BUHM 2014-2015

      The relevance of chemical nomenclature in hospitality management are

      There are over 19 million known chemical substances. Without some type of system, naming these substances would be hopelessly complicated. The system used in naming substances is called chemical nomenclature.There are two major divisions to the International Union of Pure and Applied Chemistry IUPAC system:

      inorganic nomenclature

      organic nomenclature

      Organic compounds contain carbon, usually in combination with hydrogen, oxygen, nitrogen, and/or sulfur.All other substances are inorganic compounds, divided into three basic categories:

      ionic compounds

      molecular compounds

      acids

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      Jen Angelo Garcia 2 years ago

      18 GARCIA, JA BUHM II

      The inportance of knowing the name is to gain knowledge on how you will formulate chemicals and how can you distinguish acid from bases and bases from salt tre importance of this in Hospitality Management is large because you must know the name of your guest the name of the foor the name of the chemicals you are using and many other more

    • paguiligan julia profile image

      Julia Ann 2 years ago

      37 Paguiligan JATBUHM

      The chemical nomenclature is also helpful in hospitality management. Through chemical nomenclature we know the names of the chemicals to be used before we use. We know how the chemicals we use are harmful or not.

    • profile image

      Alyssa Serna 2 years ago

      Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. This section is designed to help you review some of those rules and conventions.