Chapter 19, Problem 9E

Interpretation Introduction

Interpretation:

A balanced redox equation is to be stated by combining the half-reaction equations, $\text{Cr}\to {\text{Cr}}^{\text{3+}}+{\text{3e}}^{-}$ and ${\text{Cl}}_2+2{\text{e}}^{-}\to {\text{2Cl}}^{-}$.

Concept introduction:

The reactions in which one compound undergoes oxidation while the other undergoes reduction are termed as redox reactions. The molecule or compound which loses one or more electrons is said to be oxidized. The molecule or compound which gains one or more electrons is said to be reduced.