Chapter 9, Problem 116A

Interpretation Introduction

Interpretation:

The type of reactions that occur in aqueous solution needs to be explained with examples.

Concept introduction:

An aqueous solution is defined as the solution in which water is the solvent. The reactions that occur in aqueous solutions are classified based on the product produced which can be a produce liquid, solid or gas.

Answer to Problem 116A

The type of chemical reactions can be redox reaction, double displacement reaction, precipitation reaction and acid-base reaction.

Explanation of Solution

Three types of reactions occur in aqueous solutions depending on the products formed. This can produce a solid, liquid or gas.

An example where water is produced is as follows:

${\text{H}}_{\text{3}}{\text{PO}}_{\text{4}}\left(\text{aq}\right)+\text{3RbOH}\left(\text{aq}\right)\to 3{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)\text{+}{\text{Rb}}_{\text{3}}{\text{PO}}_{\text{4}}\left(\text{aq}\right)$

An example where gas is produced is as follows:

$\begin{array}{l}{\text{HNO}}_3\left(\text{aq}\right)\text{+}\text{LiCN}\left(\text{aq}\right)\to \text{HCN}\left(\text{g}\right)\text{+}{\text{LiNO}}_{\text{3}}\left(\text{aq}\right)\\ \end{array}$

An example where solid is produced is as follows:

$\text{K}\left(\text{s}\right)\text{+}\text{CuCl}\left(\text{aq}\right)\to \text{KCl}\left(\text{aq}\right)\text{+}\text{Cu}\left(\text{s}\right)$

Conclusion

The type of chemical reactions can be redox reaction, double displacement reaction, precipitation reaction and acid-base reaction.