Why does a catalyst not change the equilibrium position?
It speeds up only the reaction that forms products
It is used up as the reaction reaches equilibrium
It changes the overall energy change of the reaction
It speeds up forward and reverse reactions equally
45 exam-style questions on Edexcel GCSE Chemistry 5.2 Reversible reactions and equilibria, covering 5.2.1 Reversible reactions and dynamic equilibrium, 5.2.2 The Haber process, and 5.2.3 Changing the position of a dynamic equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.