Question

What happens to lime water when co2 gas is bubbled through it in excess?

Answer 1

lime water is Ca(OH)2

Ca(OH)2 + CO2 ---> CaCO3 + H2O

as we can see...Calcium carbonate precipitate is formed

Observation-Lime water turns milky

Answer 2

Answer:

↤↤↤ Ⓗⓔⓛⓛⓞ ↦↦↦

Explanation:

When excess of CO2 is passed through this

solution, the milkiness disappears. This is due to the

formation of calcium bicarbonate which is colorless and

soluble in water.

(milkiness)CaCO3+H2O+(excess)CO2⟶(water soluble)

Ca(HCO3)2

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