Questions: Write the full, ionic, and net ionic equations for the reaction of BaCl2(aq) with K2SO4(aq).

Write the full, ionic, and net ionic equations for the reaction of BaCl2(aq) with K2SO4(aq).
Transcript text: 30. Write the full, ionic, and net ionic equations for the reaction of $\mathrm{BaCl}_{2}(\mathrm{aq})$ with $\mathrm{K}_{2} \mathrm{SO}_{4}(\mathrm{aq})$.
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Solution

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Solution Steps

Step 1: Write the Balanced Molecular Equation

First, we write the balanced molecular equation for the reaction between barium chloride (\(\mathrm{BaCl}_2\)) and potassium sulfate (\(\mathrm{K}_2\mathrm{SO}_4\)).

\[ \mathrm{BaCl}_2(\mathrm{aq}) + \mathrm{K}_2\mathrm{SO}_4(\mathrm{aq}) \rightarrow \mathrm{BaSO}_4(\mathrm{s}) + 2\mathrm{KCl}(\mathrm{aq}) \]

Step 2: Write the Full Ionic Equation

Next, we write the full ionic equation by dissociating all the soluble ionic compounds into their respective ions.

\[ \mathrm{Ba}^{2+}(\mathrm{aq}) + 2\mathrm{Cl}^{-}(\mathrm{aq}) + 2\mathrm{K}^{+}(\mathrm{aq}) + \mathrm{SO}_4^{2-}(\mathrm{aq}) \rightarrow \mathrm{BaSO}_4(\mathrm{s}) + 2\mathrm{K}^{+}(\mathrm{aq}) + 2\mathrm{Cl}^{-}(\mathrm{aq}) \]

Step 3: Write the Net Ionic Equation

To obtain the net ionic equation, we cancel out the spectator ions (ions that appear on both sides of the equation). The spectator ions here are \(\mathrm{K}^{+}\) and \(\mathrm{Cl}^{-}\).

\[ \mathrm{Ba}^{2+}(\mathrm{aq}) + \mathrm{SO}_4^{2-}(\mathrm{aq}) \rightarrow \mathrm{BaSO}_4(\mathrm{s}) \]

Final Answer

\[ \boxed{ \begin{aligned} &\text{Balanced Molecular Equation:} \\ &\mathrm{BaCl}_2(\mathrm{aq}) + \mathrm{K}_2\mathrm{SO}_4(\mathrm{aq}) \rightarrow \mathrm{BaSO}_4(\mathrm{s}) + 2\mathrm{KCl}(\mathrm{aq}) \\ &\text{Full Ionic Equation:} \\ &\mathrm{Ba}^{2+}(\mathrm{aq}) + 2\mathrm{Cl}^{-}(\mathrm{aq}) + 2\mathrm{K}^{+}(\mathrm{aq}) + \mathrm{SO}_4^{2-}(\mathrm{aq}) \rightarrow \mathrm{BaSO}_4(\mathrm{s}) + 2\mathrm{K}^{+}(\mathrm{aq}) + 2\mathrm{Cl}^{-}(\mathrm{aq}) \\ &\text{Net Ionic Equation:} \\ &\mathrm{Ba}^{2+}(\mathrm{aq}) + \mathrm{SO}_4^{2-}(\mathrm{aq}) \rightarrow \mathrm{BaSO}_4(\mathrm{s}) \end{aligned} } \]

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