Define the following terms:

1. matter
2. homogeneous mixture
3. heterogeneous mixture
4. substance
5. solution
6. compound
7. element
8. physical change
9. chemical change
10. solid
11. liquid
12. gas
13. physical property
14. chemical property
15. intensive physical
16. extensive chemical
17. chemical symbols

Answer the following questions using complete sentences.

1. What are the 2 types of substances?
2. What is physical property used for?
3. List the three states of matter.
4. Give the similarity between solids and liquids.
5. How do the properties of a compound compare to the elements that make it up?
6. What are the numbers in a chemical formula CO₂?