Question

Sodium carbonate reacts with hydrochloric acid to produce a gas called 'X'.When this gas is passed through the limewater it forms a milky substance 'Y' .a) Identify the Names of 'X' and 'Y'.​

Answer 1

Answer:

X is Sodium Chloride. When you mix sodium carbonate and HCl, two molecules of HCl give their hydrogen atoms to the sodium carbonate. This produces carbonic acid, with the formula H2CO3. The sodium from sodium carbonate forms a salt with the chloride particles from the HCl, producing sodium chloride, or table salt.

Y is carbon dioxide as the limewater turns milky.

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