Question

How is the following information provided in a chemical equation?

an aqueous solution

Answer 1

Aqueous solution:

When a solute is dissolved in water the solution is called an aqueous solution.

1. It can be represented in a chemical reaction by writing $\left(\mathrm{aq}\right)$ next to the substance.
2. Example: When silver nitrate$\left({\mathrm{AgNO}}_3\right)$ reacts with potassium chloride$\left(\mathrm{KCl}\right)$, silver chloride$\left(\mathrm{AgCl}\right)$ and potassium nitrate$\left({\mathrm{KNO}}_3\right)$ are formed.

$$\begin{gathered} {\mathrm{AgNO}}_3\left(\mathrm{aq}\right)+\mathrm{KCl}\left(\mathrm{aq}\right)\to \mathrm{AgCl}\left(\mathrm{s}\right)+{\mathrm{KNO}}_3\left(\mathrm{aq}\right) \\ \mathrm{Silver}\mathrm{Potassium}\mathrm{Silver}\mathrm{Potassium} \\ \mathrm{nitrate}\mathrm{chloride}\mathrm{chloride}\mathrm{nitrate} \end{gathered}$$

3. An aqueous solution is mentioned in the above equation.