on the passing excess Co2 through limewater it first turns milky and then becomes colourless . explain why write all chemical equations of the reaction involved
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CaO+CO2-----CaCO3(milky insoluble ppt)
CaCO3+CO2---- CaCO3(soluble that's why colorless)
CaCO3+CO2---- CaCO3(soluble that's why colorless)
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