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

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Answers

2016-04-13T17:10:40+05:30
When we touch the bottom of the test tube with our palm we feel hot .it is an exothermic reaction reaction .

hope this helps u:))

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