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CLASSIFICATION OF CHEMICAL REACTIONS

Chemical reactions occur when the reactants interact

Endothermic require energy to be carried out

Exothermic releases energy in the form of light and heat

Activation energy: it is the minimum amount of energy required to break bonds and initiate a chemical reaction

Heat of reaction: the amount of energy required that is released when a chemical reaction occurs

Classification of the reactions according to the mechanism

Decomposition reaction: Reactant splits and forms more substances

Synthesis reaction: Two reactants combine to form a new substance

Single displacement or substitution reaction: A chemical element replaces another element

Double displacement or double substitution reaction: Two compounds exchange parts of their structures with each other.