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Question
What happens when an acid reacts with a metal hydrogencarbonate? Write equation of the reaction which takes place.
Solution
When an acid is added to a metal hydrogen carbonate, carbon dioxide gas is liberated and metal salt and water are formed.
This reaction can be represented as follows.
Acid + Metal hydrogen carbonate → Salt + Water + Carbon dioxide gas
Example: When sodium hydrogen carbonate is treated with hydrochloric acid, carbon dioxide gas is liberated and sodium chloride is formed.
The reaction that takes place can be written as follows:
NaHCO3(s) + HCl(aq) → NaCl(aq) + H2O(l) + CO2(g)
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