Explain what is meant by the electrolysis of water. Write the electrode reaction and explain them.
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electrolysis, process by which electric current is passed through a substance to effect a chemical change. ... The process is carried out in an electrolytic cell, an apparatus consisting of positive and negative electrodes held apart and dipped into a solution containing positively and negatively charged ions.
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Electrolysis of water is the decompositon into oxygen and hydrogen gas due to an electric current passed through the water. In pure water, at the negatively charged cathode, a reduction reaction takes place, with electrons (e−) from the cathode being given to hydrogen cations to form hydrogen gas.
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