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\mathrm{NaCl(aq)}

d.c.cathodeanode

-

+

\mathrm{H_2}

\mathrm{Cl_2}

d.c.

\mathrm{Cu^{2+}}

-

cathode

+

anodemetal keycopper anode

\mathrm{CuSO_4(aq)}

\mathrm{Cu^{2+}+2e^-\to Cu}

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Chemistry · Chemical reactions, formulae and equations; Oxidation, reduction and redox; Acids, bases and salts; Electrolysis; Metals

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