A college is preparing a reference chart for a practical on metal reactivity. The cells were made using the same electrolyte and conditions. Silver is the least reactive metal. The table shows the voltage produced by each cell.
| Electrodes | Voltage |
|---|---|
| Zinc and silver | 1.5 V |
| Iron and silver | 1.2 V |
| Copper and silver | 0.5 V |
State the order of the four metals from most reactive to least reactive. Explain whether a cell made with zinc and copper electrodes would produce a greater or smaller voltage than a cell made with zinc and iron electrodes.
90 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.