Question

4. what happens when carbondioxide
gas is passed through lime
water?what will happen if we pass excess of co2
through lime water?​

Answer 1

Answer:

When CO2 is passed through lime water, it turns milky due to the formation of calcium carbonate which is sinsoluble in water. 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.

Answer 2

Answer:

when CO2 gas is passed through lime water it turns milky due to the formation of calcium carbonate which formula is

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

when excess of carbon dioxide is passed through calcium carbonate calcium hydrogen carbonate is formed and solution become colourless.

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

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