Across
- 4. The kind of energy stored in chemicals
- 5. A change in which no new substances are formed
- 6. A change in which new substances are formed
- 10. Is formed when steel or iron reacts with oxygen and water
- 11. A permanent change that cannot be reversed
Down
- 1. A new chemical formed in a chemical reaction
- 2. Something that puts out fire
- 3. A change that can be reversed
- 6. Produced when acids react with limestone
- 7. Chemicals that join together to form a new substance
- 8. A compound that includes oxygen
- 9. The scientific word for burning