`BaSO_(3)darr+H_(2)SO_(4) to BaSO_(4) darr+SO_(2)uarr+H_(2)O`

Options

A. For precipitate formation formation reaction
B. For precipitate dissolution reaction
C. For precipitate exchange reaction
D. For no reaction

Answer

To determine the type of reaction represented by the equation:

\[ \text{BaSO}_3 (s) + \text{H}_2\text{SO}_4 (aq) \rightarrow \text{BaSO}_4 (s) + \text{SO}_2 (g) + \text{H}_2\text{O} (l) \]

we will analyze the components of the reaction step by step.

### Step 1: Identify the Reactants and Products
- The reactants are Barium Sulfite (\( \text{BaSO}_3 \)) and Sulfuric Acid (\( \text{H}_2\text{SO}_4 \)).
- The products are Barium Sulfate (\( \text{BaSO}_4 \)), Sulfur Dioxide (\( \text{SO}_2 \)), and Water (\( \text{H}_2\text{O} \)).

### Step 2: Analyze the States of Matter
- \( \text{BaSO}_3 \) is indicated as a solid (precipitate) with a downward arrow.
- \( \text{H}_2\text{SO}_4 \) is in aqueous solution (dissolved in water).
- \( \text{BaSO}_4 \) is also a solid (precipitate) with a downward arrow.
- \( \text{SO}_2 \) is a gas (indicated by the upward arrow).
- \( \text{H}_2\text{O} \) is in liquid form.

### Step 3: Determine the Type of Reaction
- Since both \( \text{BaSO}_3 \) and \( \text{BaSO}_4 \) are precipitates, we can conclude that there is a transformation of one precipitate into another.
- The formation of \( \text{SO}_2 \) gas and \( \text{H}_2\text{O} \) indicates that a reaction is occurring where products are formed from the reactants.

### Step 4: Classify the Reaction
- This reaction involves the exchange of sulfate ions and the formation of a gas, which suggests that it is not merely a precipitation reaction but rather a more complex process.
- The presence of both solid precipitates and gaseous products indicates that this is a **precipitate exchange reaction**.

### Final Conclusion
The reaction \( \text{BaSO}_3 + \text{H}_2\text{SO}_4 \rightarrow \text{BaSO}_4 + \text{SO}_2 + \text{H}_2\text{O} \) is classified as a **precipitate exchange reaction**.

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