Across
- 3. Reaction with oxygen producing heat
- 5. Reaction that absorbs heat
- 9. Acid reacts with a base
- 10. Substance that starts a chemical reaction
- 11. Reaction combining substances into one
- 12. Loss of electrons in a reaction
Down
- 1. Reaction that releases heat
- 2. Substance formed in a chemical reaction
- 4. Reaction breaking one substance into parts
- 6. Gain of electrons in a reaction
- 7. Speeds up a reaction without being used
- 8. Solid formed from a solution reaction