Suppose you want to build a galvanic cell where the half-reaction at the cathode is: Fe3+(aq) + e- → Fe2+(aq) Choose a half-reaction that would take place at the anode. The choice is yours. Suggest substances that would form the electrodes of this cell.

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.