Define activation complex.

Understand the Problem

The question is asking for a definition of 'activation complex', which refers to a state in a chemical reaction where the reactants are in a transitional form just before forming products.

Answer

An unstable arrangement of atoms occurring at the maximum energy point during a chemical reaction.

An activated complex is an unstable arrangement of atoms that occurs at the maximum energy point during a chemical reaction. It is a high energy state formed as reactants are transformed into products.

Answer for screen readers

An activated complex is an unstable arrangement of atoms that occurs at the maximum energy point during a chemical reaction. It is a high energy state formed as reactants are transformed into products.

More Information

The activated complex is a key concept in understanding reaction mechanisms because it represents the point at which old bonds are breaking and new bonds are forming. It is a transient state and cannot be isolated.

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