Heterogeneous and Homogeneous Mixtures
HomoGeneous and Heterogeneous Mixture
These mixtures are made up of more than one phase or of different parts and can be separated physically. The different components are visibly distinguishable from one another. A chocolate chip cookie, a piece of quartz containing a vein of gold. granite, oil and vinegar, a tossed salad, halo-halo,pizza and a bowl of raisin bran cereal are some examples of hetergeneous mixtures.
Homogeneous mixtures have only one phase, or have a uniform appearance throughout, and any portion of the sample has the same properties and composition. Each region of a sample is identical to all other regions of the sample. Solutions like salt water and rubbing alcohol, are considered homogeneous because they are in one phase. The first is a mixture of salt dissolved in water, while the second is mainly isopropyl alcohol and water.A sample of milk appears to be uniform to the eye, but simple microscopic examination shows it to be heterogeneous. It is a hetergeneous misture containting water,proteins, carbohydrates, fats, and some vitamins and minerals. Mixtures cab be separated physcally. Physical separation methods include filtering, evaporationg, distilling, decanting, crystallizing, sieving, and the use of magnet.