Chapter 9.2, Problem 25PP

Interpretation Introduction

Interpretation:

The balanced chemical equation of the reaction of Lithium Iodide and silver nitrate needs to be determined.

Concept introduction:

The type of replacement reaction in which exchange of ions takes place between two compounds of the reaction is known as double displacement reaction. One example of this type of reaction is,

${\text{Ca(OH)}}_2(aq)+2\text{HCl(}aq\text{)}\to {\text{CaCl}}_2(aq)+2{\text{H}}_{\text{2}}\text{O}$

Answer to Problem 25PP

The balanced equation of the double displacement reaction of lithium iodide and silver nitrate is as follows:

$\text{LiI}\text{(}aq\text{)}\text{+}{\text{AgNO}}_3(aq)\to {\text{LiNO}}_{\text{3}}(aq)+\text{AgI}\text{(}s\text{)}$

Explanation of Solution

The given reaction is the reaction of lithium iodide and silver nitrate to produce silver iodide and lithium nitrate. The reaction is double displacement reaction.

$\text{LiI}\text{(}aq\text{)}\text{+}{\text{AgNO}}_3(aq)\to {\text{LiNO}}_{\text{3}}(aq)+\text{AgI}\text{(}s\text{)}$

In the above reaction, the exchange of ions of both the reactants occurs.

Conclusion

Double displacement reaction is the reaction in which two reactants exchanges their ions to form products.