| A | B |
|---|
| methane + oxygen = | carbon dioxide + water |
| methane + little oxygen = | carbon monoxide + carbon + water |
| different metals put into acid produces | voltage |
| zinc + copper sulphate = | copper + zinc sulphate |
| hydrocarbon fuels contain | hydrogen and carbon |
| very strong synthetic material which won't rust | kevlar |
| heating rubber with sulphur to make it tougher | vulcanisation |
| solid formed when 2 solutions are mixed | precipitate |
| mass is never gained or lost | law of conservation of energy |
| substance which was thought to leave a substance on burning | phlogiston |
| ash left when a phlogiston had escaped | calx |
