Question

what are endothermic and exothermic changes? plzz answer fast... NO SPAM​

Answer 1

Answer:

endothermic reactions are those reactions which consume heat during the process and exothermic reactions are those reactions which release heat during the process

Answer 2

Endothermic,

The chemical reactions, in which the heat from outside is absorbed is called endothermic reactions.

Exothermic,

The chemical reaction in which the heat is given out is called exothermic reactions.

Hope it helps you.