Final answer:
The chemical formula for selenous acid is H₂SeO₃(aq). When hydrogen selenide reacts with potassium hydroxide, the reaction yields potassium selenide and water with the equation H₂Se + 2 KOH → K₂Se + 2 H₂O.
Step-by-step explanation:
The chemical formula for selenous acid is H₂SeO₃(aq). When hydrogen selenide, which is a binary acid like hydrogen sulfide, reacts with a base such as potassium hydroxide, it forms a salt and water. The balanced equation for this reaction is H₂Se + 2 KOH → K₂Se + 2 H₂O.
The salt product formed in this reaction is potassium selenide. Hydrogen selenide shares similar properties with hydrogen sulfide, leading to analogous reactions with alkali hydroxides to form their respective selenides and hydroxides.