Describe briefly the ionic concept of oxidation and reduction. Give an equation to illustrate.

Explanation

Oxidation is a process in which an atom or ion loses an electron(s). It is also a chemical process that involves :
Addition of oxygen
Addition of electronegative ion
Removal of hydrogen
Removal of electropositive ion (element)
Example: `Zn to Zn^(2+) + 2e^(-)`
Reduction is a process in which an atom or ion gains electrons. It is also a chemical process that involves:
Removal of oxygen
Addition of electropositive ion
Addition of hydrogen
Removal of electronegative ion
Example: `Cu^(2+) + 2e^(-) to Cu`