Chapter 3, Problem 3.39P

(a)

Interpretation Introduction

Interpretation: The balanced equationthat corresponds to the statement when gallium metal is heated in oxygen gas to form solid gallium oxide should be written.

Concept introduction:In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.

In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the stoichiometric coefficient equal on each side.

After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical states of matter are written in parenthesis.

(b)

Interpretation Introduction

Interpretation:The balanced equation that corresponds to statement when liquid hexane is burnt in oxygen to form ${\text{CO}}_{\text{2}}$ gas and ${\text{H}}_2\text{O}$ should be written.

Concept introduction:In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.

In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the stoichiometric coefficient equal on each side.

After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical states of matter are written in parenthesis.

(c)

Interpretation Introduction

Interpretation: The balanced equation that corresponds to the statement that when solutions of ${\text{CaCl}}_{\text{2}}$ and sodium phosphate are mixed, solid ${\text{Ca}}_{\text{3}}{\left({\text{PO}}_{\text{4}}\right)}_{\text{2}}$ along with sodium chloride should be written.

Concept introduction:In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.

In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the stoichiometric coefficient equal on each side.

After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical states of matter are written in parenthesis.