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.