why does lime water turn milky by breathed out air ?
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As the calcium present in it reacts with carbon dioxide and gives us calcium carbonate which is white in colour
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Air, when breathed out, contains carbon dioxide. It reacts with limewater to form calcium carbonate, which is insoluble and turns the solution milky.
Ca(OH)₂ + CO₂ → CaCO₃ + H₂O
Ca(OH)₂ + CO₂ → CaCO₃ + H₂O
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