Describe a method to make pure, dry crystals of magnesium sulfate from a metal oxide and a dilute acid. This must be in your own words, and written in complete sentences. (6)
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Magnesium sulfate-7-water, MgSO4. 7H2O, crystals are obtained by evaporation. They may be recrystallised to increase purity. You can make magnesium sulfate-7-water in the laboratory by reacting magnesium oxide with dilute sulfuric acid.
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