Respuesta :

Answer:

Explanation:

exothermic reactions are the reactions which involve the release of energy.

the energy released can be of any forms ,for example heat,light .

all the combustion reactions are exothermic reactions

Answer:

Answer is A. CH4 + 2O2 Right arrow. CO2 + 2H2O + 891 kJ

Explanation:

Because i just got it right on edg :)