Question

What happens when carbondioxide is passed through lime water ?Write the equation of the reaction.

Answer 1

Answer:

An experiment commonly used to demonstrate the interaction of CO2 and Ca(OH)2 is as follows.

Resultant carbon dioxide passed through limewater in the right tube, producing a milky solution due to precipitation of the insoluble suspension of calcium carbonate:

• Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l)

If excess CO2 is added: the following reaction takes place:

• CaCO3(s) + H2O(l) + CO2(g) → Ca(HCO3)2(aq)

The milkiness disappears since calcium bicarbonate is water-soluble.

Explanation:

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Answer 2

Answer:

hello mate

Explanation:

when CO2 gas is passed through lime water it turns milky due to the formation of calcium carbonate which formula is CaCO3. when excess of carbon dioxide is passed through calcium carbonate calcium hydrogen carbonate is formed and solution become colourless.

Ca(OH) 2+CO2→ CaCO3+H2O

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