When CO2 gas is passed through aqueous solution of calcium hydroxide it turns milky due to formation of
say the formula of ans
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Co2 = carbon dioxide
Ca(OH)2 = calcium hydroxide
when CO2 gas pass from CA(OH)2 we get CaCo3 + H2O
the formula is written as
CO2 + CA(OH) = CaCo3↓ + H2O
CO2 have 2 atoms and Ca have 1 atom that's why we get CaCo3 and O2 reacts with (OH)2 we get H2O
CaCo3 = calcium carbonate
when calcium carbonate reacts with water that is saturated from carbon dioxide and calcium bio carbonate this reaction is important for erosion
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