1. Classifying Matter (Part 1)
WCHS Chemistry

2. Matter Anything that has mass & takes up space (<-- A.K.A. volume)
Everything is made of matter! (except energy)

3. Pure Substances Constant composition with fixed ratios of elements
Example → H2O
Cannot be separated by physical means!

4. 2 Types of Pure Substances
Elements
Substances that cannot be separated into simpler substances
The building blocks of everything around you!
Everything on the Periodic Table :) -- Chlorine, Sulfur...
Compounds
Two or more elements that are chemically bonded
When atoms join, they lose their individual properties and gain NEW properties! (Examples → NaCl, C6H12O6)

5. Mixtures
Two or more substances that are mixed together but NOT chemically bonded.
Substances retain their individual properties

6. 2 Types of Mixtures Homogenous Mixtures
Mixtures that look the same throughout
Have a completely even distribution
Heterogeneous Mixtures
Mixtures in which you can see more than one type of matter
Can have more than one phase in the mixture

7. PRACTICE!!