The reaction of selenium dioxide (SeO₂) with aqueous potassium hydroxide (KOH) produces potassium selenite (K₂SeO₃) and water (H₂O).

Here's the balanced chemical equation:

SeO₂(s) + 2KOH(aq) → K₂SeO₃(aq) + H₂O(l)

Explanation:

* Selenium dioxide is an acidic oxide.

* Potassium hydroxide is a strong base.

* The reaction is a neutralization reaction, where the acidic oxide reacts with the base to form a salt (potassium selenite) and water.

The potassium selenite produced is soluble in water and forms an aqueous solution.