K2O+H2SO3>

The reaction between potassium oxide (K₂O) and sulfurous acid (H₂SO₃) results in the formation of potassium sulfite (K₂SO₃) and water. The balanced chemical equation for the reaction is:

\[ \text{K}_2\text{O} + \text{H}_2\text{SO}_3 \rightarrow \text{K}_2\text{SO}_3 + \text{H}_2\text{O} \]

In this reaction, K₂O acts as a base, and H₂SO₃ acts as an acid, resulting in the salt (K₂SO₃) and water as products.