1. Chapter 1.3 Properties of Matter

2. Intensive Properties Independent of the amount of the sample Used for Identification Examples: temperature, melting point, density

3. Extensive Properties Dependent on the amount of sample Used to determine quantity Examples: mass, weight, volume

4. Physical Changes Changes to the appearance of a substance Not composition changes Examples: States of matter changes

5. Chemical Changes Reactions Transformation into a chemically different substance Examples: 2H + O  H 2 O

6. Separation of Mixtures Recall that each component retains chemical composition This allows for various separation methods

7. Filtration Solid from liquid separation Uses porous medium Example: Filter paper

8. Filtration Apparatus

9. Distillation Homogenous mixture separation Ability of components to form gases Example: Salt water  Salt + Pure Water

10. Distillation Apparatus

11. Chromatography “Writing of Colors” Separation by differing abilities of substances to adhere to various surface solids –Paper, starch Example: ink separation by paper chromatography

12. Chromatography Image