Hydrated copper(II) sulfate is heated in a boiling tube. What is seen as the reaction takes place?
A blue solid changes into a white solid
A white solid changes into a blue solid
A blue solid changes into a colourless liquid
A white solid changes into a colourless liquid
40 exam-style questions on AQA GCSE Chemistry 6.2 Reversible reactions and dynamic equilibrium, covering 6.2.1 Reversible reactions, 6.2.2 Energy changes and reversible reactions, 6.2.3 Equilibrium, 6.2.4 The effect of changing conditions on equilibrium, 6.2.5 The effect of changing concentration, 6.2.6 The effect of temperature changes on equilibrium, and 6.2.7 The effect of pressure changes on equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.