Across
- 2. the output of a chemical reaction
- 4. A hard solid substance used throughout history
- 5. a system that does allow transfers of mass in/out of the system
- 6. when matter is changed from one form into another the total amount of mass stays the same.
Down
- 1. a system that does not allow transfers of mass in/out of the system
- 3. the substances you use to form a chemical reaction
- 6. a mashine with a rapidly rotating container that applies centrifugal force to it's contents.
- 7. Usually a gas because it does not contain metal
- 8. the speed of a substance in a chemical reaction
- 9. A mix of different metals/other materials