Chapter 18, Problem 75E

Interpretation Introduction

Interpretation: The balanced chemical equation for the reduction of ${\text{H}}_{\text{2}}{\text{SeO}}_{\text{4}}$ by ${\text{SO}}_2$ to produce $\text{Se}$ needs to be determined.

Concept introduction: Chemical equation is written in such a way that the symbolic representation of reaction represents the reaction taking place in the system. The reactants are written on the left-hand side and the products are written on the right-hand side of the equation and are separated by an arrow, two or more reactants and products are separated by “+”.

The reactions for those the number of atoms of each element in the reactant and in the product, side are equal, such reactions are said to be a balanced chemical equation.