Chem

1. What name is given to the reaction between iron and oxygen to produce iron oxide (orange in colour)?
4. The fire triangle consists of oxygen, heat and...
6. A greenhouse gas given off by burning fossil fuels.
8. What type of energy is released when you burn a fuel?
11. A type of reaction that involves a change of state only.
12. What flame colour does lithium produce?
13. When you add a glowing splint to this gas it relights.
14. What flame colour does lilac produce?
16. What name is given to the process of something changing from a solid to a liquid?

2. A piece of equipment used for measuring temperature.
3. A type of reaction that results in a chemically different substance being produced.
5. Complete the word equation: fuel + oxygen --> carbon dioxide +
7. When you add a lit splint to this gas it goes squeaky pop.
9. A reaction that gives off heat is called.
10. What happens to limewater when you bubble carbon dioxide through it?
15. A reaction involving oxygen that gives off lots of heat energy.