Across
- 3. — A reaction where two or more substances combine to form one.
- 4. — Reaction that releases heat to surroundings.
- 9. — A reaction where an insoluble solid (precipitate) forms.
- 12. — Decomposition caused by heat.
- 14. — A reaction where ions are exchanged between two compounds.
- 15. — A reaction where a substance breaks into two or more simpler substances.
Down
- 1. — Process where a substance loses oxygen or gains hydrogen.
- 2. — Decomposition using electricity.
- 5. — Reaction that absorbs heat from surroundings.
- 6. — Oxidation and Reduction happen together.
- 7. — A reaction where a more reactive element replaces a less reactive one.
- 8. — Decomposition using light energy.
- 10. — Slow eating up of metals by air and moisture.
- 11. — Process where a substance gains oxygen or loses hydrogen.
- 13. — Spoiling of food materials due to oxidation of fats and oils.