Identifying redox reactions

All redox reactions are made up of an oxidant and a reductant.
Oxidants cause oxidation of other species and in the process are themselves reduced. Oxidants are repsonsible for taking electrons from other species anf therefore oxidising them, but when they take the electrons they are reduced. Reductants work in exactly the same way but in reverse. They cause other species to reduce and in the process are themselves oxidised.

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