Across
- 1. substance formed after chemical reaction
- 4. oxidation of fat
- 6. reactions in which one substance reacts to form two or more substances
- 8. solid residue after chemical reaction
- 9. receiving hydrogen and removing oxygen
- 12. seperating hydrogen and oxygen in water
- 13. reaction that gives out heat
- 14. reactions in which two substances combine
Down
- 2. receiving oxygen and removing hydrogen
- 3. more reactive metal exchanges with less reactive metal
- 5. process of color change of metals due to moisture or air
- 7. substance that speeds up chemical reaction
- 8. decomposition through sunlight
- 10. reaction that absorb heat
- 11. decomposition through heat