What is exothermic and endothermic reaction ?​

Exothermic reaction is a reaction that involves the release of heat, while a endothermic reaction is a reaction that involves the absorption of heat

Explanation:

A example of a exothermic reaction would be the process a liquid goes through when put in cold temperatures which causes the liquid to change it's state into a solid. A example of a endothermic reaction would be melting that solid changing it's state back into it's original state a liquid.

Hope this helps.

exothermic reaction

Se denomina reacción exotérmica a cualquier reacción química que desprenda energía, ya sea como luz o calor

endothermic reaction

Un proceso endotérmico es cualquier proceso con un aumento en la entalpía H (o energía interna U) del sistema

If you translate it, you will find the answer

answer: the correct answer is   air pressure at the top of mount everest is higher than at the bottom of the grand canyon.

hope this : )

explanation:

answer: electrons