Question

What happens when co2 gas is passed into lime water what happens when excess of co2 is passed give the reactions involved?

Answer 1

when CO 2 is passed through lime water it turns milky as calcium carbonate is formed.

but when excess is passed it turns transparent again.

hope this helps

Answer 2

Answer:

↤↤↤ Ⓗⓔⓛⓛⓞ ↦↦↦

Explanation:

When CO2 is passed through lime water, it turns

milky due to the formation of calcium carbonate which

is insoluble in water.

(limewater)Ca(OH)2+CO2⟶(milkiness)CaCO3+H2O

However, 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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