The general name for a substance added to a reaction that affects the rate but is not consumed in the reaction is called complex constituent reactant catalyst

Catalyst

Explanation:

Hello, the person who answered above is false.  An activation complex is entirely different than a catalyst.

The definition of a catalyst is a substance implemented into a reaction that affects the rate, but does not find itself consumed.

Hope this helps.

particle   p is an electron and particle q is a neutron