Across
- 3. a chemical reaction where a compound is broken down into two or more simpler substances
- 5. a chemical reaction during which heat is release
- 7. a substance produced in a chemical reaction
- 9. a chemical reaction during which heat is absorbed
Down
- 1. a chemical reaction where a free element replaces another element in a compound
- 2. a chemical reaction where an acid and a base form a salt
- 4. the chemical process of burning
- 6. a chemical reaction where two or more substances are joined to form a compound
- 8. a substance that goes into a chemical reaction