Question

Ba(OH)2 + 2NH4Cl
are endothermic/exothermic

Answer 1

Heya,

Ba(OH)2 + 2NH4Cl → BaCl2 + 2NH3 + 2H2O

This is an endothermic reaction.

In this reaction when barium hydroxide is mixed with ammonium chloride it forms barium chloride, ammonia and water.

Hope this helps..:)

Answer 2

It is endothermic reaction

beacause in the last of the test tube

test tube become cooler that is why it is endothermic reaction

hope u understand