Question

Touch the bottom of the test tube. It is found to be hot. Give reason.Touch the bottom of the test tube. It is found to be hot. Give reason.​

Answer 1

Explanation:

for example Reaction A is exothermic because heat is leaving the system making the test tube feel hot.

Answer 2

Answer:

Magnesium react with hydrochloric acid to form Magnesium chloride and hydrogen along with the liberation of heat energy.

Explanation:

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