Here are the matches: Word/formula Definition HCl The formula of hydrochloric acid H2SO4 The formula of sulphuric acid Magnesium The salt made when magnesium reacts sulphate with sulphuric acid Magnesium The salt made when magnesium reacts nitrate with nitric acid A word This represents a chemical reaction equation in words This metal does not react with water Gold or acid The gas made when potassium reacts Hydrogen with water