Classification Of Chemicals!!!

Classification of matter:

Understanding matter begins with how we name it. We can divide matter into 2 types:

A)    Homogenous Substances:

-Homogenous consists of only one visible component (Ex.                  Distilled Water, Oxygen, Graphite)

B)   Heterogeneous Substances:

 -Heterogeneous contains more than one visible component (Ex. Chocolate Chip Cookies)

C) Pure Substances

  -Elements are substances that cannot be broken down into a simpler substance by a chemical reaction

  -Compounds are substances that are made up of 2 or more elements and can be changed into elements or other compounds by a chemical reaction (Ex. Salt Water)

 D) Solutions:

- A solutions is a homogeneous mixture of 2 or more substances

-Solutions usually involve liquids but don’t have to. (Ex. Fog and Steel)

· The compound that is the most present is the solvent.

· Water is the most common solvent.

· The compound present in smaller amount is the solute.

Ways of separating:

1.   Hand

2.   Filtration

3.   Distillation

4.   Crystallization

5.   Chromatography

5.   Chromatography