Across
- 7. reaction always have oxygen as a reactant
- 8. reaction with two elements forming a compound
- 10. Reaction involving breakdown of a compound using electricity
- 12. a type of decomposition reaction which is carried out by heat
- 13. Gain of oxygen or loss of hydrogen.
- 14. Spoiling of fats and oils due to oxidation
- 15. Gradual damage of metal by chemical reaction
- 16. reaction that releases heat
Down
- 1. a substance that speeds up reaction without being used
- 2. Reaction forming water and salt
- 3. a type of decomposition of molecules by the action of light
- 4. reaction combines two or more substances to form one product
- 5. reaction that absorbs heat
- 6. Solid formed during a chemical reaction in solution
- 9. reaction breaking down a compound into simpler substances
- 11. reaction that involves transfer of electrons