Across
- 4. Calcium Oxide(CaO)
- 5. It is defined as the addition of Oxygen to a substance
- 6. It is a chemical reaction in which a more reactive metal displaces a less reactive metal in an aqueous solution
- 8. It burns with a pop sound
- 9. it is used for Black & White photography
- 12. Calcium Carbonate(CaCO3)
- 13. A chemical reaction in which oxidation and reduction occurs simultaneously
- 14. a gas with a rotten egg smell
Down
- 1. Brown Fumes are formed
- 2. Its a chemical reaction in which two more substance combine to form a single product
- 3. An exothermic reaction that occurs in our body
- 7. A substance used to clense magnesium ribbon
- 10. a green colour crystal
- 11. A reaction in which heat is released or evolved