<P> An exothermic reaction is a chemical or physical reaction that releases heat . It gives net energy to its surroundings . That is , the energy needed to initiate the reaction is less than the energy released . </P>
<P> An exothermic reaction is a chemical or physical reaction that releases heat . It gives net energy to its surroundings . That is , the energy needed to initiate the reaction is less than the energy released . </P>
when is heat released in a chemical reaction
when is heat released in a chemical reaction
exothermic reaction
exothermic reaction