Briefly describe what happens during an exothermic reaction and provide an example

In exothermic chemical reactions, the heat that is released by the reaction takes the form of electromagnetic energy or kinetic energy of molecules.

Example : any combustion process, rusting of iron, and freezing of water

exothermic reactions are when reactions release energy into the environment in the form of heat. when this occurs heat is released and has a negative standard enthalpy change. ex: rusting iron or freezing water.

the organisms are not adapted to live in some communities or habitats.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.