Electrochemistry is a branch of chemistry studying the reactions that take place in the interface a electrical conductor, where electrode consists of a metal or a semiconductor (including graphite ) and an ionic conductor (the electrolyte ).
If a chemical reaction is caused by a external voltage, or if the voltage is caused by a chemical reaction , as happens in a battery , is an electrochemical reaction. Usually the electrochemical charge of studying situations where reactions redox occur in two separate compartments. Direct transfer of loads from a molecule to another is not of interest in electrochemistry. Within cells are the electrochemical plating, in which one can distinguish the stages of reduction and oxidation. Oxidation occurs at the anode (+) through this substance loses electrons, in the case of the reduction is quite the opposite, that is, on the cathode (-) gains electrons. The oxidizing agent is reduced and the reducing agent is oxidized.
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