Chapter U4.90, Problem 6E

(a)

Interpretation Introduction

Interpretation:

The balanced chemical reaction should be predicted.

Concept Introduction:

When two reactant molecules exchange their ions to form two new compounds is known as double displacement reaction.

Answer to Problem 6E

  $\text{2NaCl }\left(\text{aq}\right)\text{+ Hg}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(\text{aq}\right)\to {\text{2NaNO}}_{\text{3}}\left(\text{aq}\right){\text{ + HgCl}}_{\text{2}}\left(\text{aq}\right)$

Explanation of Solution

It is a type of double displacement reaction.

The balanced chemical reaction is shown below:

  $\text{2NaCl }\left(\text{aq}\right)\text{+ Hg}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(\text{aq}\right)\to {\text{2NaNO}}_{\text{3}}\left(\text{aq}\right){\text{ + HgCl}}_{\text{2}}\left(\text{aq}\right)$

(b)

Interpretation Introduction

Interpretation:

The balanced chemical reaction should be predicted.

Concept Introduction:

When two reactant molecules exchange their ions to form two new compounds is known as double displacement reaction.

Answer to Problem 6E

  ${\text{CaCl}}_{\text{2}}\left(\text{aq}\right)\text{+}\text{2NaOH}\left(\text{aq}\right)\to \text{Ca}{\left(\text{OH}\right)}_{\text{2}}\left(\text{s}\right)\text{+}\text{2NaCl}\left(\text{aq}\right)$

Explanation of Solution

It is a type of Double displacement reaction

The balanced chemical reaction is shown below:

  ${\text{CaCl}}_{\text{2}}\left(\text{aq}\right)\text{+}\text{2NaOH}\left(\text{aq}\right)\to \text{Ca}{\left(\text{OH}\right)}_{\text{2}}\left(\text{s}\right)\text{+}\text{2NaCl}\left(\text{aq}\right)$

(c)

Interpretation Introduction

Interpretation:

The balanced chemical reaction should be predicted.

Concept Introduction:

When two reactant molecules exchange their ions to form two new compounds is known as double displacement reaction.

Answer to Problem 6E

  ${\text{K}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)\text{+}{\text{LiNO}}_{\text{3}}\left(\text{aq}\right)\to {\text{KNO}}_{\text{3}}\left(\text{aq}\right)\text{+}{\text{Li}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)$

Explanation of Solution

It is a type of double displacement reaction.

The balanced chemical reaction is shown below:

  ${\text{K}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)\text{+}{\text{LiNO}}_{\text{3}}\left(\text{aq}\right)\to {\text{KNO}}_{\text{3}}\left(\text{aq}\right)\text{+}{\text{Li}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)$

(d)

Interpretation Introduction

Interpretation:

The balanced chemical reaction should be predicted.

Concept Introduction:

When two reactant molecules exchange their ions to form two new compounds is known as double displacement reaction.

Answer to Problem 6E

  $\text{3Zn}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(\text{aq}\right){\text{ + 2Na}}_{\text{3}}{\text{PO}}_{\text{4}}\left(\text{aq}\right)\to {\text{ 6NaNO}}_{\text{3}}\left(\text{aq}\right){\text{+ Zn}}_{\text{3}}{\left({\text{PO}}_{\text{4}}\right)}_{\text{2}}\left(\text{aq}\right)$

Explanation of Solution

It is a type of Double displacement reaction

The balanced chemical reaction is shown below:

  $\text{3Zn}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(\text{aq}\right){\text{ + 2Na}}_{\text{3}}{\text{PO}}_{\text{4}}\left(\text{aq}\right)\to {\text{ 6NaNO}}_{\text{3}}\left(\text{aq}\right){\text{+ Zn}}_{\text{3}}{\left({\text{PO}}_{\text{4}}\right)}_{\text{2}}\left(\text{aq}\right)$

(e)

Interpretation Introduction

Interpretation:

The balanced chemical reaction should be predicted.

Concept Introduction:

When two reactant molecules exchange their ions to form two new compounds is known as double displacement reaction.

Answer to Problem 6E

  ${\text{2NaNO}}_{\text{3}}\left(\text{aq}\right){\text{ + CaCl}}_{\text{2}}\left(\text{aq}\right)\to \text{ 2NaCl}\left(\text{aq}\right)\text{ + Ca}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(\text{aq}\right)$

Explanation of Solution

It is a type of Double displacement reaction

The balanced chemical reaction is shown below:

  ${\text{2NaNO}}_{\text{3}}\left(\text{aq}\right){\text{ + CaCl}}_{\text{2}}\left(\text{aq}\right)\to \text{ 2NaCl}\left(\text{aq}\right)\text{ + Ca}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(\text{aq}\right)$