Select the correct answer.

Which term describes the unstable arrangement of the reacting particles as the reaction takes place?
A.
reactants
B.
activation energy
C.
products
D.
energy of reaction
E.
activated complex

1 answer

The correct answer is E. activated complex.

The activated complex, also known as the transition state, refers to the unstable arrangement of reacting particles that occurs during the reaction process before forming products.