Question

What happens when CO2 gas is bubbled through lime water :- i)In small amount ii)in excess

Answer 1

Hi friend!
When CO2 gas is bubbled through lime water :-
i)In small amount then the lime water turns milky due to formation of calcium carbonate. Reaction: 
Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l) 
The insoluble CaCO3 is the reason that the solution turns milky
 ii)in excess amount then the milkiness of the lime water disappears due to formation of Calcium bicarbonate. 

HOPE THIS ANSWER HELPED YOU...PLEASE MARK AS BRAINLIESTT!!!

Answer 2

Answer:

I) when CO2 is passed through lime water in small amount then the following reaction take place

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

The water becomes milky and white

2) excess carbon dioxide is passed through lime water the following reaction take place ;

CaCO3 + H2O + CO2 --- Ca(HCO3)2

Calcium bicarbonate is formed and the milkiness of water disappears