When small amount of carbon (IV) oxide is passed through lime water, a white precipitate is formed. When excess carbon (IV) oxide is bubbled through, the...

When small amount of carbon (IV) oxide is passed through lime water, a white
precipitate is formed. When excess carbon (IV) oxide is bubbled through, the white
precipitate dissolves to form a colorless solution.
a) Name the white precipitate.
b) Explain using chemical equations why the white precipitate dissolves in excess of
carbon(IV) oxide.
c) What will happen of the above colorless solution is boiled.

---

a) Calcium carbonate
b) CaCO₃ reacts with excess carbon(IV) oxide to form soluble calcium hydrogen
carbonate hence the precipitate dissolves.

c) A white precipitate of CaCO₃ will be formed.

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sharon kalunda answered the question on May 22, 2019 at 13:17

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