I found these answers. Hope this helps. c;
Exothermic reactions are chemical reactions that release energy. Example: Burning a candle is an example of an exothermic reaction because energy is being released during the reaction in the form of heat. Endothermic reactions are chemical reactions that absorb energy.
An exothermic reaction releases energy into the environment. Some examples of these are:
The combustion of carbon to form carbon dioxide. Heat is released in the process.
Solidification of a liquid releases heat. This is one of the reasons why water does not get converted to ice spontaneously; the heat that is released has to be eliminated for the reaction to proceed. This is what happens in a refrigerator.