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3. All chemical reactions, whether they are endothermic or exothermic, must reach a particular activation energy to get started.

Describe the difference between reactions that have high activation energy and reactions that have low activation energy​

User Goran
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Step-by-step explanation:

for reactions to occur, the reactants must've reach a certain amount of energy for collisions to occur. hence, if a reaction has a lower activation energy, this energy can be reached sooner therefore, reaction would occur faster.