Across
- 2. The reaction in which heat is given out
- 7. It is a short hand method of representing a chemical reaction in terms of symbols and formulae of the different chemical reactants and products
- 8. A substance turns milky (ppt of calcium carbonate) when carbon dioxide gas is passed through it
- 9. It is a type of decomposition in which lead nitrate gives more than two products
Down
- 1. It is a reaction that takes place in teh presence of sunlight
- 3. Nitrogen and hydrogen gas react to give a single product ammonia
- 4. The gas evolved when zinc reacts with sulphuric acid
- 5. It is the process in which water is split to give hydrogen and oxygen gas
- 6. The white precipitate formed when barium chloride reacts with sodium sulphate
- 7. Respiration is a type of _____ change