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Principles of electricity and chemistry overlap in electrochemistry, the study of the interconversion of chemical and electrical energy in chemical reactions.
In a voltaic or galvanic cell, the flow of electrons accompanying a spontaneous oxidation–reduction reaction occurs via an external pathway. That’s electricity!
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In electrolysis, electricity from an external source is used to “force” a non-spontaneous chemical reaction to occur. What reaction takes place when an electric current flows through water?
Electrolysis of water normally produces hydrogen and oxygen. What happens if the electrolyte contains ions that are more easily oxidized or more easily reduced than water molecules?
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