What happens when carbondioxide is passed through lime water? Why does this happen?
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Carbon dioxide reacts with limewater (a solution of calcium hydroxide, Ca(OH) 2), to form a white precipitate (appears milky) of calcium carbonate, CaCO 3. Adding more carbon dioxide results in the precipitate dissolving to form a colourless solution of calcium hydrogencarbonate.
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when carbon di oxide is passed in lime water it becomes milky it is because of excess of co2
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