Question

What happens when carbon dioxide gas is passed through lime water :
(i) for a short time ?
(ii) for a considerable time ?
Write equations of the reactions involved

Answer 1

Explanation:

i) For short duration: When calcium hydroxide(lime water) solution reactswith carbon dioxide gas,the Limewaterturns milky due to the formation of a white precipitate of calcium carbonate (CaCO3) which is insoluble in water. ii) for long duration: ... CaCO3 (s) + H2O(l) + CO2(g) ------> Ca(HCO3)2.

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