Heat.
exothermic reaction .
For example in an exothermic chemical reaction.
Heat is released during an exothermic reaction.
Heat is released by an exothermic reaction. Exothermic means heat releasing.
exothermic reaction
what is released during a chemical reaction is ENERGY.
Heat is released as a product in an exothermic reaction, so it is on the product side of the reaction.
If heat from a reaction is released, it is an exothermic reaction.
exothermic reaction
During an exothermic reaction, the temperature increases because heat is released as a byproduct of the reaction.
An exothermic reaction (often a spontaneous one)
Exothermic.