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DifferencesElectrolytic Cell (Electrolysis)Chemical Cell / Voltaic Cell
StructureWith electrical supply.No electrical supply.
ElectrodesCan be the same or difference metal (graphite or platinum).Must be two different metals.
Flows of electronsFrom anode to cathode through external circuit.From more electropositive metal to less electropositive metal through external circuit.
Transformation of energyElectrical energy to chemical energy.Chemical energy to electrical energy.
At positive terminalAnode.Oxidation occurs. Anions release electrons at the anode.Cathode.Reduction occurs. \

Oxidising agent gain electrons.

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At negative terminalCathode.Reduction occurs. \

Cations gain electrons from the cathode.

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Anode.Oxidation occurs. \

Reducing agent releases  electrons.

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Similarities Between Voltaic and Electrolytic Cells

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-Both use redox reactions

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-The anode is the site of oxidation

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-The cathode is the site of reduction

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-The electrons flow through the wire from anode to cathode

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