Soluble salts can be prepared by reacting metal oxides with dilute acids. State one other type of reactant that can react with a dilute acid to form a soluble salt.
Iron(III) sulfate contains the ions Fe3+\text{Fe}^{3+}Fe3+ and SO42−\text{SO}_4^{2-}SO42−. State the chemical formula of iron(III) sulfate.
Describe a practical method to prepare pure, dry crystals of magnesium sulfate from a solid metal carbonate and a dilute acid. Your description should include the names of the specific reactants used.
40 exam-style questions on AQA GCSE Chemistry 4.2 Reactions of acids, covering 4.2.1 Reactions of acids with metals, 4.2.2 Neutralisation of acids and salt production, 4.2.3 Soluble salts, 4.2.4 The pH scale and neutralisation, 4.2.5 Titrations, and 4.2.6 Strong and weak acids (HT only). Each one has a worked solution and a mark scheme showing where the marks go.