Solid ammonium chloride is heated in a test tube.
ammonium chloride ⇌ ammonia + hydrogen chloride
Which statement about heating the solid is correct?
The reverse reaction takes place, because ammonium chloride is on the left of the equation
The reverse reaction takes place, because heating makes ammonia and hydrogen chloride combine
The forward reaction takes place, because heating breaks down ammonium chloride
No reaction takes place, because heating only melts the ammonium chloride
109 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.