Question

Take about 2 g barium hydroxide in a test tube. Add 1 g of ammonium chloride and mix with the help of a glass rod. Touch the bottom of the test tube with your palm. What do you feel? Is this an exothermic or endothermic reaction?NCERT Class 10th Science Chapter 1 Chemical Reactions and Equations

Answer 1

Answer: Endothermic

Explanation:

Ba(OH)2+NH4cl=bacl2+NH4OH

As the bottom of the test tube becomes cool hence we conclude that the reaction is endothermic as it absorbs heat from its environment to complete the reaction

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Answer 2

Answer:

when we mix barium hydroxide with ammonium chloride the bottom of test tube became cold due to absorption of heat. so it is an endothermic reaction .

Explanation:

this reaction absorps heat from its environment to be completed, so it is an endothermic reaction ......

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