1. Pure Substances and Mixtures
Categorizing Matter

2. All matter in the universe is either a ____________________________ or a ____________________________.

3. ________________________ =
Made of either a single element or one particular kind of compound
Has a ____________________ composition
H2O, NaCl, C, etc.
Can’t be broken down into simpler substances through _________________________ changes
Two Types of Pure Substances
_________________________

4. ___________________________ =
Consists of only one type of ___________________
Au, Ag, C, Na, Br, K, H, etc.
2 or more different atoms ________________________ combined together
Composition is always the _________________
Cannot be _____________________________ using physical changes
H20, NaCl, CO2, etc.

5. ___________________________ =
Substances that have been combined ______________________________ (no chemical reaction)
___________________________ Mixtures = solutions
“Homo” = ________________________
Mixture that looks the same everywhere
Air, salt water, sugar water
___________________________ Mixtures = suspensions
“Hetero” = ________________________
Looks different throughout
Mud puddle, blood, salad dressing, chocolate chip cookie, bird seed

7. Element, Compound, or Mixture?