Question

a) A solution "X" reacts with crushed egg-shells to give a gas that turns limewater
milky. The constituent of the egg shell could possibly be the component of marble.
Identify the solution "X" component of egg shell and write a balanced equation for the
reaction.​

Answer 1

Answer:

X is HCl. and egg shell has CaCo3.

Explanation:

CaCo3 + 2HCl= CaCl2 +H2O +CO2.

and

CO2 turns lime water milky

Answer 2

Answer:

CaCO3 + 2HCl ----> CaCl2 + H20 + CO2

Explanation:

The egg-shells are made up of calcium carbonate. When it reacts with HCl, it liberates CO2 gas which truns limewater milky.

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