Oxidation

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Term for a chemical reaction in which an atom or molecule releases electrons (oxidises) and another substance accepts these electrons (reduces). Oxidation is always associated with reduction. Both processes together are partial reactions of a redox reaction. Originally, oxidation was exclusively understood as the chemical reaction of a substance with oxygen. The term was later expanded to include reactions in which hydrogen atoms are removed from a compound (dehydrogenation). In the chemical sense, oxidation means any release of electrons, regardless of whether oxygen is involved or not.

Oxidation - Eisen, Gestein, Sherryglas

1 = oxidised iron, 2 = oxidised rock, 3 = sherry (fermentation with desired oxygen influence)

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