It is adenosine triphosphate, usually called ATP.
mitochondria
ATP stores and transfers chemical energy in cells. The ATP molecule is very important in chemical processes as it will facilitate the energy required.
In nuclear fission it is the nucleus of the atom that splits, not a molecule, and this releases neutrons and energy. Reactions at the molecule level are termed chemical reactions, not nuclear, and these chemical reactions involve whole atoms and molecules.
A chemical reaction that releases energy is called an exothermic reaction.
These are not chemical reactions but thermonuclear reactions.
Exothermic reactions
All chemical reactions that release energy in the form of heat are called exothermic reactions.
Endothermic reaction = absorbs energyExothermic reaction = releases energy
CHEMICAL Chemical energy is stored in the bonds between atoms. This stored energy is released and absorbed when bonds are broken and new bonds are formed - chemical reactions. Chemical reactions change the way atoms are arranged. These reactions both absorb and release energy, but the net reaction releases energy.
An exothermic reaction is a chemical reaction that releases energy in the form of light or heat. It is the opposite of an endothermic reaction
Exergonic reactions are chemical reactions in which energy is released as heat.
Chemical energy via the sugar molecule Glucose.
mitochondria
ATP stores and transfers chemical energy in cells. The ATP molecule is very important in chemical processes as it will facilitate the energy required.
In nuclear fission it is the nucleus of the atom that splits, not a molecule, and this releases neutrons and energy. Reactions at the molecule level are termed chemical reactions, not nuclear, and these chemical reactions involve whole atoms and molecules.
Burning them releases the chemical energy.
A chemical reaction that releases energy is called an exothermic reaction.