Question

carbon dioxide gas was passed through koh solution​

Answer 1

Explanation:

The Chemical Reactions for the Carbon dioxide when it is passed to the KOH Solution is shown below,

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2KOH + CO₂ ----------→ K₂CO₃ + H₂O

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This Reaction is one of the major chemical properties of the Bases.

In this Reaction, Potassium Hydroxide which is the base absorbs the carbon dioxide gas to produce the Potassium Carbonate and Water.

This Reaction is also the examples of the Neutralization reaction in which acidic oxide CO₂ reacts with the Strong Alkali KOH to form Salt and Water.

Hope it helps.

Answer 2

Explanation:

when dilute nitric acid reacts with calcium oxide it forms calcium carbonate and water