CH-1789
Simple cells
Chemistry · Secondary 4 · Medium · Simple cells
A simple cell is made using magnesium and copper electrodes in dilute sulfuric acid.
The voltmeter shows a positive reading when the copper is connected to the positive terminal.
Which statement about the electrodes is correct?
The voltmeter shows a positive reading when the copper is connected to the positive terminal.
Which statement about the electrodes is correct?
- Magnesium is the negative electrode and is oxidised to .
- Magnesium is the positive electrode and is reduced to Mg atoms.
- Copper is the negative electrode and is oxidised to .
- Copper is the negative electrode and is reduced to Cu atoms.
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