Chemical reactions that release energy in the form of heat, light, or sound are called exothermic reactions.
Example: Mixture of sodium and chlorine to yield table salt
In other words, combination reactions are exothermic.
Reactions that absorb energy or require energy in order to proceed are called endothermic reactions.
For example: In the process of photosynthesis, plants use the energy from the sun to convert carbon dioxide and water to glucose and oxygen.
To put it simply, an exothermic reaction is a chemical reaction in which energy is released in the form or light or heat. If the reactant (A) has more energy than the products (B and C) of a chemical reaction, then the excess energy will released and you have an exothermic reaction. When you digest food, energy is released for your body to use. Combustion reactions (fire) and the explosions of bombs are also good examples of exothermic reactions.
So:
If A ≠B + C, then
A = B + C + Excess Energy
Endothermic reactions, on the other hand, absorb heat. You can notice this when ice melts and when ammonium nitrate is dissolved in water (which is used to create commercial cold/ice packs).
An exothermic reaction is a reaction that gives off heat. For instance, when wood burns heat that was stored in chemical bonds is given off into the environment.
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An endothermic reaction is a reaction that stores heat. For example, reacting citric acid and baking soda.
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The above examples are chemical reactions. There are also endothermic and exothermic physical reactions. For instance, boiling water or melting ice cubes is and endothermic reaction because it takes heat to do it, and that heat is stored. Also, dissolving salts can be both endothermic and exothermic (depending on the salt used.)
An endothermic reaction absorbs heat. It cannot proceed without the addition of heat. An exothermic reaction releases heat. Since heat causes chemical reactions to go faster, an exothermic reaction can "feed on itself" and get out of control, releasing damaging amounts of heat and, if proceeding in a closed container, causing an explosion.
energy released by the reaction or energy absorbed.
EXTREMELY!!!!! exothermic. As in fires and explosions exothermic.
endothermic because it absorbs energy, and not releasing it
Although it is hard to predict if a reaction will be exothermic or endothermic, there are many factors that can be considered when trying to determine it. first endothermic reactions usually employ the breaking of strong bonds, and the creation of weak bonds. While exothermic reactions usually break weak bonds and create strong bonds. Sadly these are the only ways to predict if a reaction will be endothermic or exothermic, altough there are other methods that could be used that are much more complex.
The difference between endothermic and exothermic energy is that exothermic energy is the reaction that releases energy and endothermic is the reaction in ehich energy is absorbed.
You can generally tell by changes in temperature, whether you have an exothermic reaction which produces heat, or an endothermic reaction which consumes heat.
An endothermic reaction absorbs heat. It cannot proceed without the addition of heat. An exothermic reaction releases heat. Since heat causes chemical reactions to go faster, an exothermic reaction can "feed on itself" and get out of control, releasing damaging amounts of heat and, if proceeding in a closed container, causing an explosion.
Exothermic reaction is just one of the two possible chemical reactions: either exothermic or endothermic. (No difference but heat release)
Endothermic
energy released by the reaction or energy absorbed.
This is a strong exothermic reaction.
Exothermic
Nothing to explain; that is the way EXO- and ENDOthemic reactions are called by definition
EXTREMELY!!!!! exothermic. As in fires and explosions exothermic.
endothermic because it absorbs energy, and not releasing it
Endothermic reactions absorb heat from the reactants, i.e , the vessel or beaker in which the reactions have happened will be cool to touch........ Whereas in exothermic reactions, Heat will be given out and the vessel will be hot to touch..........