1) Magnesium + Oxygen → a) salt + water b) magnesium oxide c) metal hydroxide + hydrogen 2) Sodium + water → a) salt + hydrogen b) sodium hydroxide + water c) sodium hydroxide + hydrogen 3) Magnesium + hydrochloric acid → a) salt + hydrogen b) magnesium chloride + water c) hydrogen + water 4) acid + base → a) alkali b) salt + water + carbon dioxide c) salt + water 5) In a displacement reaction, magnesium + copper sulphate → a) copper + magnesium sulphate b) magnesium + copper oxide c) magnesium + copper chloride 6) In a displacement reaction, chlorine + potassium bromide → a) chlorine bromide +potassium b) potassium chloride + bromine c) chlorine + potassium 7) In a displacement reaction, chlorine + potassium iodide → a) potassium chloride + iodine b) potassium + chlorine c) potassium bromide + iodine 8) In a displacement reaction, bromine + potassium iodide → a) potassium iodide + iodine b) potassium bromide + iodine c) potassium chloride + iodine 9) What is the 'acid + base' reaction called? a) Neutralisation b) Displacement c) Oxidation 10) What is lost during a 'reduction' reaction? a) Hydrogen b) Helium c) Oxygen

Chemical Changes - Equations

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