Question

What are exothermic and endothermic
changes? Give example.
(PLEASE ANSWER FAST)​

Answer 1

Answer:

those reaction in which released heat during reaction called endothermic reaction.

example:burning of coal.

those reactions which evolved heat during reaction called exothermic reactions.

example:combustion reactions.

Answer 2

Explanation:

Endothermic:

An endothermic process is any process which requires or absorbs thermal energy from its surroundings, usually in the form of heat. Ex.:

Melting ice cubes.

Melting solid salts.

Evaporating liquid water.

Exothermic:

An exothermic reaction is a chemical reaction that releases energy through light or heat.

Ex.:

any combustion reaction.

a neutralization reaction.

rusting of iron (rust steel wool with vinegar)

the thermite reaction.

Hope it helps ☺️ you mate.........

Thanq