Across
- 5. A reaction where two substances combine
- 6. A substance that starts a chemical reaction
- 7. The small number in a formula that shows how many atoms
- 9. A reaction that absorbs heat
- 10. Reaction where atoms swap partners
Down
- 1. A substance formed in a chemical reaction
- 2. When the number of atoms is equal on both sides
- 3. A reaction that releases heat
- 4. The number in front of a chemical formula
- 8. A reaction where a compound breaks apart