On passing excess carbon dioxide gas through lime water, it first turns milky and then colourless. Explain why? Write all the chemical equations of the reactions involved.
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Answer:
CaCO3^2+ LIMEWATER⇒Ca(HCO3)^2
Explanation:
When the excess carbon dioxide gas is passed through the lime water, it turns milky first due to the formation of the calcium carbonate as a precipitate which is insoluble in water and then become colorless due to the formation of calcium bicarbonate.
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