When barium hydroxide reacts with ammonium chloride, it forms barium chloride and water with the evolution of ammonia gas. The beaker in which the reaction takes place becomes very cold. Is it an exothermic or an endothermic reaction? Write a balanced chemical equation for this reaction.
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It is an endothermic reaction as in this reaction heat is drawn making the surroundings cold.
Ba(OH)2 + 2NH4Cl>BaCl2+2H2O+2NH3
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