Across
- 3. heat is absorbed
- 4. oxygen decreases
- 7. both Oxidation and Reduction takes place
- 9. a percipitate is formed
- 12. light is absorbed and a substance decomposes
- 13. higher reactive metal displaces less reactive metal
- 14. oxygen increases
Down
- 1. salt and water are the products
- 2. electricity is absorbed and a single substance decomposes
- 5. two substance react by an exhange of ions
- 6. heat is absorbed and a substance decomposes
- 7. aerial Oxidation of oil and fats
- 8. eating away of metals due to action of acid , oxygen, moisture on its surface
- 10. heat is released
- 11. two or more new substances are formed