Question

when carbon dioxide is passed through line water what happens write the chemical equation for it​

Answer 1

the lime water becomes milky

Answer 2

When CO2 is passes through the thelime water following reaction take place .. CaCO3+CO2+H2O=Ca(HCO)3(when excess of carbon dioxide is passed through the solution , the turbidity disappears and a clear solution is obtained due to the formation of calcium bicarbonate which is soluble in water).