Chapter 4, Problem 4.67QP

(a)

Interpretation Introduction

Interpretation:

The given equation ${\text{Ca}}_{\text{(s)}}{\text{ + F}}_{\text{2(g)}}\stackrel{}{\to }?$ has to be completed and balanced.

Concept Introduction:

Balancing the equation:

• There is a Law for conversion of mass in a chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants.
• First write the skeletal reaction from the given information.
• Then count the number of atoms of each element in reactants as well as products.
• Place suitable coefficients in front of reactants as well as products until the number of atoms on each side (reactants and products) becomes equal.

(b)

Interpretation Introduction

Interpretation:

The given equation ${\text{Mg}}_{\text{(s)}}{\text{ + O}}_{\text{2(g)}}\stackrel{}{\to }?$ has to be balanced.

Concept Introduction:

Refer part (a)

(c)

Interpretation Introduction

Interpretation:

The given equation ${\text{H}}_{\text{2(g)}}{\text{ + N}}_{\text{2(g)}}\stackrel{}{\to }?$ has to be balanced.

Concept Introduction:

Refer part (a)