Across
- 3. What gas found in air is one of the reactants in an oxidation reaction?
- 4. It is produced when copper carbonate gets heated up
- 10. Poisonous gas that gets formed when there is not enough oxygen for combustion
- 12. This substance is formed with carbon dioxide when methane gas is completely burnt in air
- 13. The colour of magnesium oxide
- 14. The colour of blue cobalt chloride paper in the presence of water
- 15. This is a type of oxidation reaction
Down
- 1. This is the solid that dissolves in a solvent
- 2. Burning magnesium is an example of this type of reaction
- 5. The mass of the products of a chemical reaction is the same as the mass of what?
- 6. The colour of iodine vapour
- 7. Type of combustion that happens when there is plenty of oxygen
- 8. What turns cloudy when carbon dioxide is present
- 9. This is a type of physical change
- 11. It is conserved in a chemical reaction