Question

defenation of endothermic and exothermic reactions.

Answer 1

hey mate ur ans
exothermic reaction - the reaction which proceeds with LOSS of heat is exothermic
ex- EXit

endthermic - the reaction which proceds with absorbtion OF heat are endothermic

hope it helps Mark as brainliest and follow me

Answer 2

exothemic reacton-- are those reaction in which heat is evolved
endothermic reaction --- are those reaction in which heat is absorbed