it is not a chemical reaction. It is a nuclear reaction and it is called fusion.
Radiant energy is exothermic energy. Fire is a chemical reaction that produces heat. This heat is released as a result of the exothermic chemical reaction.
An exothermic reaction is a chemical reaction that produces heat as a byproduct. In these reactions, energy is released in the form of heat, increasing the temperature of the surroundings. This is in contrast to endothermic reactions, which absorb heat from the surroundings.
Chemical reactions that produce heat (or energy) are known as Exothermic Reactions. (Example: combustion of fuels)
A combustion reaction is a chemical reaction that produces a flame when a fuel (such as a hydrocarbon) reacts with oxygen (from the air) to produce heat and light. This process releases energy in the form of heat and light, resulting in the flame that we see.
synthesis
The stick of a match contains chemical energy, which is released when the match is struck, causing a chemical reaction that produces heat and light.
A reaction that produces heat
the name your looking for is an "exothermic" reaction, one in which heat energy is released to the surrounding atmosphere the other is an endothermic, which absorbs the energy around it making it a "cold" reaction
A glowstick undergoes a chemical reaction inside the tube which produces light energy. The chemical energy in the reactants is converted into light energy that is visible to us. Heat energy is also released as a byproduct of the reaction.
Burning wood in a fireplace is a common chemical reaction that produces heat. This involves the combustion of wood, where oxygen from the air reacts with the wood to release heat energy.
The heat of reaction is the amount of heat energy released or absorbed during a chemical reaction. It is a measure of the reaction's energy change. The relationship between the heat of reaction and a chemical reaction is that the heat of reaction indicates whether a reaction is exothermic (releases heat) or endothermic (absorbs heat). This information helps us understand the energy changes that occur during the reaction.
Exothermic chemical reactions release energy in the form of heat and sometimes light. A common example would be the combustion (oxidation) of methane*:Methane: CH4 + 2O2 -----> CO2 + 2H2O + Energy (heat and light)* The combustion of methane (natural gas) is commonly used to heat water, cook, and to heat homes.