If by energy you mean heat energy exothermic reactions.
Exothermic reaction gives free heat (energy).
Exothermic reaction gives free heat (energy).
A reaction that gives off energy
When a chemical reaction takes in more energy than it gives off, it becomes an endothermic reaction. In an endothermic reaction, energy is absorbed from the surroundings in the form of heat.
This type of reaction is known as an exothermic reaction. In this process, energy is released in the form of heat to the surroundings. Example of an exothermic reaction is the combustion of fuel.
A chemical reaction that produces energy is said to be exothermic. In comparison, if it consumes energy it is endothermic.
yes it does <><><> No- some reactions ABSORB energy. In terms of heat energy, some are exothermic, and some are endothermic.
Endothermic
An example of a reaction that gives out a lot of heat is the combustion of gasoline in engines. This reaction releases a large amount of energy in the form of heat and light.
An exothermic reaction gives off heat as a result of energy being released in the form of heat. In an exothermic reaction, the products have lower energy than the reactants, leading to the release of heat to the surroundings.
alternative energy
An endothermic reaction is one that consumes heat.