Question

Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO3(aq).

Answer 1

There should be an archive set up in OpenStudy with a few solutions. This type of question gets asked frequently.

Step 1: Write the balanced equation for the double displacement reaction:
\[\text{2AgNO}_3 + \text{K}_2\text{SO}_3 \to \text{Ag}_2\text{SO}_3 + \text{2KNO}_3\]
Step 2: Identify the precipitate:
\[\text{2AgNO}_{3(aq)} + \text{K}_2\text{SO}_{3(aq)}\to \text{Ag}_2\text{SO}_{3(s)} + \text{2KNO}_{3(aq)}\]
Step 3: Write the equation in ionic form: (The precipitate stays written as it is.)
\[\text{2Ag}^{1+}_{(aq)} + \text{2NO}_{3(aq)}^{1-} + \text{2K}^{1+}_{(aq)} + \text{SO}_{3(aq)}^{2-}\to \text{Ag}_2\text{SO}_{3(s)} + \text{2K}^{1+}_{(aq)} + \text{2NO}_{3(aq)}^{1-} \]
Step 4: Cancel spectator ions. Those are the ions that are the same on both sides. What remains is the net ionic equation:
\[\text{2Ag}^{1+}_{(aq)} + \text{SO}_{3(aq)}^{2-}\to \text{Ag}_2\text{SO}_{3(s)} \]