1. Physical Properties and the Components of Matter

2. Types of Matter Matter can be classified into two groups Mixtures
Pure Substances

3. Mixtures
Mixtures are when two or more substances combine AND both substances keep their original properties.
Two types:
Homogenous mixtures
Heterogeneous mixtures

4. Homogeneous Mixture A mixture that is uniform throughout the sample
Examples
Tea
Coffee
Milk

5. Solutions
A type of homogenous mixture where the particles involved are molecular size.
Solute – The chemical that is dissolved
Solvent – The dissolving agent.

6. Heterogeneous Mixtures
A mixture where the composition is not the same throughout the sample.
Chocolate chip cookies
Salad
Chicken noodle soup

7. Suspension
A heterogeneous mixture with particles that block light and will settle out.
Mud
Coffee grounds in water.
Sand in water.

8. Colloids
A heterogeneous mixture with particles too small to settle out.
Display the Tyndall effect
Examples
Smoke
Fog
Kool-aid

9. Substances All samples are identical
All samples have a definite composition
The material cannot be physically separated.

10. Examples of Substances
Oxygen – O2
Gold - Au
Water – H2O
Sugar – C6H12O6
Ammonia – NH4+
Hydrochloric acid - HCl

11. Atoms and Elements
Atoms are the smallest part of matter that keeps unique properties.
Elements is any matter that is only made of one kind of atom. O2 Ag Co

12. Molecules
Any two or more atoms that are chemically bounded. O2 H2
H2O

13. Compounds
Any substance made of two or more different elements bonded together chemically.
H2O
NaCl
C6H12O6