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A substance 'X', commonly used in baking products, reacts with dilute $\ce{HCl}$ to produce a gas 'Y' which is used in one type of fire extinguisher. Name the substance 'X' and gas 'Y'. Write a balanced chemical equation for the reaction which takes place.
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X- Sodium bicarbonate/sodium hydrogen carbonate/$\ce{NaHCO3}$ ($\frac{1}{2}$)
Y- Carbon dioxide/$\ce{CO2}$ gas ($\frac{1}{2}$)
$\ce{NaHCO3(s) + HCl(aq) -> NaCl(aq) + H2O(l) + CO2(g)}$ (1)
Y- Carbon dioxide/$\ce{CO2}$ gas ($\frac{1}{2}$)
$\ce{NaHCO3(s) + HCl(aq) -> NaCl(aq) + H2O(l) + CO2(g)}$ (1)