Question

what does one mean by exothermic and endothermic reaction ?give example ​

Answer 1

Answer:

exothermic reaction : the reaction in which heat energy is evolved is called exothermic reaction

endothermic reaction: the reaction in which heat energy is absorbed is called endothermic reaction.

Answer 2

Answer:-

Exothrermic Reaction:The change which involves liberation of heat energy, is called exothermic reaction.

example-2Mg +Oxygen =2Mgo +Heat energy.

Endothermic Reaction:The change which involves absorption of heat energy, is called endothermic reaction.

example-CaO +H2O=(CaOH)2 +Heat energy.

thanks..