Across
- 4. ending substance in a chemical reaction
- 7. starting substance in a chemical reaction
- 8. more energy is going into the reaction than out
- 9. how many molecules of a substance
Down
- 1. new substance is formed
- 2. amount of space an object takes up
- 3. amount of each element
- 4. no new substance is formed
- 5. more energy is going out of the reaction than in
- 6. amount of matter in an object