What is Endothermic reaction?
An '''endothermic reaction''' is a [[chemical reaction]] that takes in energy from the surroundings. The opposite of an endothermic reaction is an [[exothermic reaction]]. Reversible reactions are where the products can react to remake the original reactants. The energy is usually transferred as heat energy: the reaction absorbs heat. The temperature decrease can sometimes be detected using a thermometer. Some examples of endothermic reactions are: * [[Photosynthesis]] * Reaction between [[ethanoic acid]] and [[sodium carbonate]] * Dissolving [[ammonium chloride]] in water * [[Thermal decomposition]] {{chem-stub}} [[Category:Chemical reactions]]