Chapter 11, Problem 38A

(a)

Interpretation Introduction

Interpretation: To determine the balance of chemical reactions of a combination reaction.

Concept Introduction: The type of chemical reaction in which more than one atom get combined and form various kind of product forms a combination reaction.

Answer to Problem 38A

The balanced complete reaction will be ${\text{2Mg+O}}_2\to 2\text{MgO}$

Explanation of Solution

When the magnesium atom will combine with the oxygen atom, it will produce magnesium oxide.

The balanced chemical reaction is:

  ${\text{2Mg+O}}_2\to 2\text{MgO}$

(b)

Interpretation Introduction

Interpretation: To determine the balance of chemical reactions of a combination reaction.

Concept Introduction: The type of chemical reaction in which more than one atom get combined and form various kind of product forms a combination reaction.

Answer to Problem 38A

The balanced complete reaction will be ${\text{Pb+O}}_2\to {\text{PbO}}_2$

Explanation of Solution

When the lead atom will be combined with the oxygen atom, it will produce lead oxide.

The balanced chemical reaction is:

  ${\text{Pb+O}}_2\to {\text{PbO}}_2$

(c)

Interpretation Introduction

Interpretation: To determine the balance of chemical reactions of a combination reaction.

Concept Introduction: The type of chemical reaction in which more than one atom get combined and form various kind of product forms a combination reaction.

Answer to Problem 38A

The balanced complete reaction will be $\text{Ca+S}\to \text{CaS}$

Explanation of Solution

When a calcium atom will be treated with a sulfur atom, it will form calcium sulfide.

The balanced chemical reaction can be written as:

  $\text{Ca+S}\to \text{CaS}$