20. Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the following equations: inol on (a) Mg(s) + NiCl2(aq) MgCl2(aq) + Ni(s) > (b) PCI3(1) + Cl2(g) PCI5(s)

Q: Identify the substance being oxidized and the substance being reduced. a) Mg(s) + Br2(s) = MgBr2(s)…

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A:

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A: Electrochemistry is branch of chemistry in which we deal with redox reaction occur in cell.

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Redox Reactions

Redox reactions are considered to be the chemical reactions involving both oxidation and reduction processes. They are actually oxidation-reduction reactions. The term redox is made from two words where “red” comes from reduction and “ox” comes from oxidation. During a redox reaction electron transfer takes place in such a way that one chemical compound gets reduced and the other one gets oxidized.