Hydrogen sulfate (H₂SO₄) is commonly known as sulfuric acid. When it reacts with potassium hydroxide (KOH), it forms potassium sulfate (K₂SO₄) and water (H₂O).

Here's the balanced chemical equation:

H₂SO₄ (aq) + 2KOH (aq) → K₂SO₄ (aq) + 2H₂O (l)

This is a neutralization reaction where an acid (sulfuric acid) reacts with a base (potassium hydroxide) to produce a salt (potassium sulfate) and water.