The concentration of one of the products of a system at equilibrium is decreased. What happens next?
More reactants react together to form products until equilibrium is reached again
More products react together to form reactants until equilibrium is reached again
The concentration of every other substance in the mixture also decreases
The concentration of every other substance in the mixture stays the same
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.