Question

what happens when carbon dioxide is passed in excess over lime water​

Answer 1

When CO2 is passed through lime-water, it turns milky due to the formation of an insoluble precipitate of Calcium Carbonate. ... The CaCO3 precipitate causes the milkiness. If you pass excess CO2 through lime-water, the CaCO3 reacts with the excess CO2 and water to form calcium hydrogen carbonate or calcium bicarbonate

Answer 2

Answer:

first it turns lime water milky and if excess of it it passed water again becomes transparent