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Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron conductor (a metal or a semiconductor) and an ionic conductor (the electrolyte), and which involve electron transfer between the electrode and the electrolyte or species in solution. If a chemical reaction is driven by an external applied voltage, as in electrolysis, or if a voltage is created by a chemical reaction as in a battery, it is an electrochemical reaction. In contrast, chemical reactions where electrons are transferred between molecules are called oxidation/reduction (redox) reactions. In general, electrochemistry deals with situations where oxidation and reduction reactions are separated in…show more content…
| |7.6 Fuel cells | |8 Corrosion | |8.1 Iron corrosion | |8.2 Corrosion of common metals | |8.3 Prevention of corrosion | |8.3.1 Coating | |8.3.2 Sacrificial anodes | |9 Electrolysis | |9.1 Electrolysis of molten sodium chloride | |9.2 Electrolysis of water | |9.3 Electrolysis of aqueous solutions | |9.3.1
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