This is a double replacement reaction.
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2koh + h2so4 = k2so4 + 2h20
The reaction between selenium dioxide and aqueous potassium hydroxide forms selenites, or salts containing the SeO3^2- ion, and water. This reaction can be represented as SeO2 + 2KOH + H2O → K2SeO3 + H2O.
The answer is one mole.
1
No Potassium oxide is extremely basic (alkaline).