Chapter 11.2, Problem 23LC

(a)

Interpretation Introduction

Interpretation: To determine the complete chemical reaction.

Concept Introduction: When more than one atom or element is combined, will form a different type of product. It may be a combination and decomposition reaction.

Answer to Problem 23LC

The complete and balanced chemical reaction will be ${\text{CaI}}_{\text{2}}{\text{+Hg(NO}}_{\text{3}}{\text{)}}_{\text{2}}\to {\text{HgI}}_{\text{2}}{\text{+Ca(NO}}_{\text{3}}{\text{)}}_{\text{2}}$

Explanation of Solution

When calcium iodide reacts with mercuric nitrate, they give a precipitate of mercuric iodide and calcium nitrate.

  ${\text{CaI}}_{\text{2}}{\text{+Hg(NO}}_{\text{3}}{\text{)}}_{\text{2}}\to {\text{HgI}}_{\text{2}}{\text{+Ca(NO}}_{\text{3}}{\text{)}}_{\text{2}}$

(b)

Interpretation Introduction

Interpretation: To determine the complete chemical reaction.

Concept Introduction: When more than one atom or element is combined, will form a different type of product. It may be a combination and decomposition reaction.

Answer to Problem 23LC

The complete and balanced chemical reaction will be ${\text{2Al+3Cl}}_{\text{2}}\to {\text{2AlCl}}_{\text{3}}$

Explanation of Solution

Solid aluminum reacted with chlorine gas to give solid aluminum chloride. Its complete and balanced chemical reaction will be:

  ${\text{2Al+3Cl}}_{\text{2}}\to {\text{2AlCl}}_{\text{3}}$

(c)

Interpretation Introduction

Interpretation: To determine the complete chemical reaction.

Concept Introduction: When more than one atom or element is combined, will form a different type of product. It may be a combination and decomposition reaction.

Answer to Problem 23LC

The complete and balanced chemical reaction will be $\text{2Ag+2HCl}\to {\text{2AgCl+H}}_{\text{2}}$

Explanation of Solution

When solid silver reacts with hydrochloric acid, it gives a precipitate of silver chloride and hydrogen gas. The complete and balanced chemical reaction can be written as:

  $\text{2Ag+2HCl}\to {\text{2AgCl+H}}_{\text{2}}$

(d)

Interpretation Introduction

Interpretation: To determine the complete chemical reaction.

Concept Introduction: When more than one atom or element is combined, will form a different type of product. It may be a combination and decomposition reaction.

Answer to Problem 23LC

The complete and balanced chemical reaction will be ${\text{2C}}_{\text{2}}{\text{H}}_{\text{2}}{\text{+5O}}_{\text{2}}\to {\text{4CO}}_{\text{2}}{\text{+2H}}_{\text{2}}\text{O}$

Explanation of Solution

When Acetylene reacts with oxygen, it will decompose to give carbon dioxide and water molecules. The complete and balanced chemical reaction can be written as:

  ${\text{2C}}_{\text{2}}{\text{H}}_{\text{2}}{\text{+5O}}_{\text{2}}\to {\text{4CO}}_{\text{2}}{\text{+2H}}_{\text{2}}\text{O}$