Two white solids when taken together in a beaker and stirred, the beaker turns ice cold. Write the balanced chemical equation for the reaction.

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Solution

These two compounds are ammonium chloride NH₄Cl and barium hydroxide -Ba(OH)₂. The reaction between the two is written as follows
Ba(OH)₂ + 2NH₄Cl -----------> BaCl₂ + 2NH₃ + 2 H₂O
This reaction is an endothermic reaction as it absorbs heat from the surroundings. This is why the n=beaker turns ice cold.

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