Across
- 2. Reaction based on reactivity of metals.
- 4. Why adding acid to water is dangerous?
- 9. An endothermic decomposition reaction.
- 11. Why is statue of Liberty green?
- 13. Saprophytes do this.
- 14. Why add vinegar to a wasp sting?
- 15. Photosynthesis is a _ reaction.
Down
- 1. Another name for double displacement.
- 3. Common way to refine metals industrially
- 5. Why apples turn yellow in air?
- 6. Originates from latin word "Reducere"
- 7. Kidney stones is a result of this.
- 8. All combustions are _ reactions.
- 10. Black and white photography.
- 12. A + B -> AB