Question: Explain how you identify an oxidation-reduction reaction, and what happens in an oxidation-reduction reaction. Edit
Answer: To pick out an oxidation-reduction reaction, observe the oxidation number of an atom before and after the reaction. If the oxidation number is greater in the product, then it lost electrons and the substance was oxidized. If the oxidation number is less, then it gained electrons and was reduced.
An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. Oxidation-reduction reactions are made of two parts, a reduced half and an oxidized half, and occur together. The reduced half gains electrons and the oxidation number decreases, while the oxidized half loses electrons and the oxidation number increases.
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