A reversible reaction takes place in a sealed flask. The rate of the forward reaction falls and the rate of the reverse reaction rises. What happens once the two rates are equal?
Both reactions stop and no further change takes place
The reactants are completely used up to form the products
The amounts of reactants and products stay constant
The rate of the forward reaction starts to rise again
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.