CH-1736
Simple cells
Chemistry · Secondary 4 · Medium · Simple cells
A simple cell is set up using magnesium and copper strips as electrodes in dilute sulfuric acid. The bulb in the circuit lights up brightly. Which change will DECREASE the brightness of the bulb?
- Replacing magnesium with zinc while keeping copper
- Increasing the surface area of both electrodes
- Using a more concentrated sulfuric acid solution
- Polishing the magnesium strip before use
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