Chemical Changes Revision Crossword Puzzle

QUESTIONS LIST: displacement: a reaction in which a more reactive element takes the place of a less reactive element in a compound, cation: a positive ion formed from the loss of electrons, anion: a negative ion formed from the gain of electrons, negative: the charge of an electron, proton: the positively charged sub-atomic particle found in the nucleus of an atom, electrolysis: the splitting of a substance using an electric current, cathode: the negative electrode, anode: the positive electrode, molten: a term used to describe a liquid substance formed by heating a solid, hydrogen: the gas produced when a metal reacts with acid, neutral: the word given to a substance with ph 7, salt: a substance formed when an acid and alkali react together, indicator: a substance used to test a substance's ph to see whether it is an acid or alkali, filtration: a technique to separate an insoluble solid from a liquid (eg - sand from saltwater), reduction: the loss of oxygen in a reaction, oxidation: the gain of oxygen in a reaction.