Across
- 3. chemical symbol of gold.
- 5. 2 or more reactant's react to form one product.
- 6. yellow precipitate formed by reaction of lead nitrate and potassium iodide.
- 7. reaction in which energy is released in form of heat or light.
- 9. chemical symbol of aluminum.
- 10. valency of aluminum
- 11. chemical symbol of magnesium.
- 12. chemical symbol of zinc.
Down
- 1. a substance breaks down into two or more products.
- 2. reaction in which more reactive element displaces less reactive element from its solution.
- 4. reaction in which exchange of ions takes place between 2 substances to form new products.
- 8. reaction in which heat is absorbed.