A substance X which is used as an antacid reacts with dilute hydrochloric acid to produce a gas Y which is used in one type of fire-extinguisher. Name the substance X and gas Y. Write a balanced equation for the chemical reaction which takes place.
Substance X is sodium hydrogen carbonate as it is used as an antacid.
Gas Y is carbon dioxide gas as it is used in one type of fire-extinguisher.
The balanced equation for the chemical reaction is given below:
$NaHCO_3(s) + HCl → NaCl(aq) + CO_2(g) + H_2O(l)$
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