A student uses a non-rechargeable alkaline battery in a torch. The torch works for six hours and then stops working.
Explain why the battery stops producing electricity.
The student cannot recharge the alkaline battery.
Explain why an alkaline battery cannot be recharged.
The student replaces the alkaline battery with a rechargeable battery.
Explain how supplying an external electrical current makes the rechargeable battery work again.
40 exam-style questions on AQA GCSE Chemistry 5.2 Chemical cells and fuel cells, covering 5.2.1 Cells and batteries, 5.2.2a Fuel cells, and 5.2.2b Half equations for hydrogen fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.