Exothermic reactions

An exothermic reaction is a chemical reaction that relaeses energy in the form of heat. It is the opposite of  an endothermic reaction. It can be expressed in the chemical equation as :
reactants → products + energy

Some of the example of exothermic reaction are:

1)Combustion reactions of fuels Neutralization reactions such as direct reaction of acid and base.
2)Adding concentrated acid to water .
3)Burning of a substance.
4)Adding water to anhydrous copper (II) sulphate.
5)The thermite reaction. Reactions  that takes place in a self- heating can based on lime and alluminium.

Generally, exothermic reactions are more spontaneous than their counterparts, endothermic reactions. In an exothermic reaction, the heat may be listed among the products of the reaction.