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Question
What happens when a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide? Write the chemical equation of the reaction which takes place.
Solution
Sodium hydrogencarbonate (baking soda) is produced when a cold and concentrated solution of sodium chloride (brine) reacts with ammonia and carbon dioxide.
NaCl + NH3 + H2O + CO2 → NaHCO3 + NH4Cl
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