Chapter 7.1, Problem 7.1QAP

Interpretation Introduction

Interpretation:

Balance each of the given chemical equations.

a. ${\text{N}}_{\text{2}}{\text{(g)+O}}_{\text{2}}\text{(g)}\to \text{NO(g)}$

b. $\text{HgO(s) }\to {\text{ Hg(l) + O}}_{\text{2}}\text{(g)}$

c. ${\text{Fe(s) + O}}_{\text{2}}\text{(g) }\to {\text{Fe}}_{\text{2}}{\text{O}}_{\text{3}}\text{(s)}$

d. ${\text{Na(s) + Cl}}_{\text{2}}\text{(g) }\to \text{NaCl(s)}$

e. ${\text{Cu}}_{\text{2}}{\text{O(s) + O}}_{\text{2}}\text{(g) }\to \text{CuO(s)}$

Concept introduction:

A balanced chemical equation has the equal number of each element on the both sides of the equation.

To balance the chemical equation is as follows:

Step1. The skeletal equation is written first having products.

Step 2.The number of atoms of each type of element appearing on both sides and balance the elements one at a time by using suitable coefficients.

Step3: Large numbers of atoms are balanced first.