Chapter 11, Problem 40A

(a)

Interpretation Introduction

Interpretation: To determine the balance of chemical reactions.

Concept Introduction: The type of chemical reaction in which the count of atoms will be identical on both sides of the reaction is named a balanced chemical reaction.

Answer to Problem 40A

The balanced complete reaction will be ${\text{Au+KNO}}_{\text{3}}\to {\text{AuNO}}_{\text{3}}\text{+K}$

Explanation of Solution

When gold is treated with potassium nitrate, it will replace potassium atoms and form ${\text{AuNO}}_{\text{3}}$ .

The balanced chemical reaction is:

  ${\text{Au+KNO}}_{\text{3}}\to {\text{AuNO}}_{\text{3}}\text{+K}$

(b)

Interpretation Introduction

Interpretation: To determine the balance of chemical reactions.

Concept Introduction: The type of chemical reaction in which the count of atoms will be identical on both sides of the reaction is named a balanced chemical reaction.

Answer to Problem 40A

The balanced complete reaction will be ${\text{Zn +AgNO}}_{\text{3}}\to {\text{Zn(NO}}_{\text{3}}{\text{)}}_{\text{2}}\text{+Ag}$

Explanation of Solution

When zinc is treated with silver nitrate, the zinc atom will replace the silver atom and form zinc nitrate.

The balanced chemical reaction is:

  ${\text{Zn +AgNO}}_{\text{3}}\to {\text{Zn(NO}}_{\text{3}}{\text{)}}_{\text{2}}\text{+Ag}$

(c)

Interpretation Introduction

Interpretation: To determine the balance of chemical reactions.

Concept Introduction: The type of chemical reaction in which the count of atoms will be identical on both sides of the reaction is named a balanced chemical reaction.

Answer to Problem 40A

The balanced complete reaction will be ${\text{Al+H}}_{\text{2}}{\text{SO}}_{\text{4}}\to {\text{Al(SO}}_{\text{4}}{\text{)}}_{\text{3}}\text{+Al}$

Explanation of Solution

When aluminum is treated with sulfuric acid, it will form aluminum sulfate and aluminum.

The balanced chemical reaction is:

  ${\text{Al+H}}_{\text{2}}{\text{SO}}_{\text{4}}\to {\text{Al(SO}}_{\text{4}}{\text{)}}_{\text{3}}\text{+Al}$