A student made four cells. In each cell, one of the two electrodes was copper. The table shows the voltage of each cell. In which cell were both of the electrodes made of copper?
Table: The voltage produced by each of four cells that all contain at least one copper electrode
| Cell | Voltage in V |
|---|---|
| W | 1.10 |
| X | 0.00 |
| Y | 0.78 |
| Z | 2.71 |
Cell W
Cell X
Cell Y
Cell Z
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.