Across
- 3. A reaction involving heating calcium carbonate to form carbon dioxide and calcium oxide
- 7. A reaction that produces energy.
- 10. Reaction with oxygen
- 12. Acid-base reaction
Down
- 1. An example of a chemical reaction
- 2. An example of a reaction in which atoms from high to low energy state
- 4. A reaction that forms water from oxygen and hydrogen
- 5. A reaction that takes in energy
- 6. Starting material in a reaction
- 8. Formed by a reaction
- 9. An example of a reaction that leads to atoms with more energy
- 11. An example of a physical change