3.The following reaction occurs spontaneously.             Cu2+(aq)  +  Zn(s)  -->  Cu(s)  +  Zn2+(aq) Write the balanced reduction half-reaction.     a.     Zn2+(aq)  +  2e-  -->  Zn(s)     b.     Zn(s)  +  2e-  -->  Zn2+(aq)    c.     Zn(s)  -->  Zn2+(aq)  +  2e-   d.     Cu2+(aq)  +  2e- -->  Cu(s)

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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.