What is activation energy? A. the heat energy given off by a reaction
B. the energy needed to get a reaction started
C. the energy absorbed by the bonds that form in a reaction
D. the energy stored in the bonds of a reactions enzyme
I NEED HELP ASAP

B

Explanation:

energy needed to get a reaction started

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chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

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