Across
- 4. substance that gains oxygen
- 8. white solid precipitate
- 9. reactions where many reactants form one product
- 10. reactions which absorbs heat
- 12. used for whitewashing
- 13. aeriel oxidation of oils and fats
- 14. reaction where one reactant decomposes to many products
Down
- 1. substance which is used to prevent rancidity
- 2. reactions where heat is released
- 3. reactant used in black and white photography
- 5. simple form of chemical reaction
- 6. method to prevent corrosion
- 7. colour of lead iodide
- 11. detoriation of metals due to water,air etc
- 15. gas which can be tested by a smouldering matchstick