what happens when CO2 is passed through slaked lime?
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When\xa0CO2 is passed through lime water for a short duration, it turns lime water milky due to the formation of a white precipitate of calcium carbonate.Ca(OH) + CO2 → CaCO3 + H2OWhen\xa0CO2\xa0is passed through lime water for a long time, then white precipitate of calcium carbonate which was formed initially dissolves due to the formation of soluble calcium hydrogen carbonate and solution becomes clear again.CO2 + CaCO3 + H2O → Ca(HCO3)2