Electrochemistry

Electrochemistry is the branch of chemistry that deals with the relations between electrical and chemical phenomena.

It is used in everyday life by the use of batteries and corrosion.

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These reactions involve the exchange of electrons between chemical species.

One is an oxidation process at the battery negative electrode where in the valence of at least one species becomes more positive, and the other is a reduction process where the battery's positive electrode where in the valence of at least one species becomes more negative.

Corrosion is the process of corroding metal or other materials. It occurs in batteries when the acid escapes from the battery.

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Electrolysis is the decomposition of water into oxygen and hydrogen gas due to an electric current being passed through the water.

USES

• Unwanted hair removal.
• Separating water molecules.

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