`SO_(2)` turns into which acid when mixed with water

Options

A. `H_(2)SO_(2)`
B. `H_(2)SO_(3)`
C. `H_(2)SO_(4)`
D. None of the above

Answer

To determine which acid is formed when sulfur dioxide (SO₂) is mixed with water, we can follow these steps:

### Step 1: Identify the reaction
When sulfur dioxide (SO₂) is mixed with water (H₂O), it undergoes a chemical reaction.

### Step 2: Write the chemical equation
The reaction can be represented by the following equation:
\[ \text{SO}_2 + \text{H}_2\text{O} \rightarrow \text{H}_2\text{SO}_3 \]
This shows that sulfur dioxide reacts with water to form sulfurous acid.

### Step 3: Identify the product
The product formed in this reaction is H₂SO₃, which is known as sulfurous acid.

### Step 4: Conclusion
Therefore, when SO₂ is mixed with water, it turns into sulfurous acid (H₂SO₃).

### Final Answer:
The acid formed when SO₂ is mixed with water is **H₂SO₃ (sulfurous acid)**.

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