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level: Reactions of metals

Questions and Answers List

level questions: Reactions of metals

QuestionAnswer
What happens when a metal reacts with water?A metal hydroxide and hydrogen are formed e.g. Sodium + water --> sodium hydroxide + hydrogen 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
What happens when a metal reacts with a dilute acid?a salt and hydrogen are formed e.g. Magnesium + hydrochloric acid → magnesium chloride + hydrogen Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
Describe all the metals reactions with water and dilute acid.view image:
What happens when a metal reacts with a metal oxide?This is an oxidation reaction as the metal gains oxygen and a metal oxide is formed e.g. Magnesium + oyxgen → magnesium oxide 2Mg(s) + O2(g) → 2MgO(s)
What is a displacement reaction?When a more reactive metal can displace a less reactive metal from its compounds.