Determining Catalysts

Arrhenius Equation:

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Clarissa Cabil 1I
Posts: 66
Joined: Fri Sep 28, 2018 12:19 am

Determining Catalysts

Postby Clarissa Cabil 1I » Wed Mar 13, 2019 9:53 pm

Will catalysts always be in the first step of a reaction mechanism as a reactant?

Matthew Tran 1H
Posts: 165
Joined: Fri Sep 28, 2018 12:16 am

Re: Determining Catalysts

Postby Matthew Tran 1H » Wed Mar 13, 2019 10:05 pm

In general, yes, catalysts are there to begin with, whereas intermediates are formed during the reaction mechanism. Both are neither reactants nor products. I think that it is possible to have catalysts in different steps though, since a couple HW questions asked about the effect of adding catalysts are different steps.

Yvonne Du
Posts: 64
Joined: Fri Sep 28, 2018 12:23 am

Re: Determining Catalysts

Postby Yvonne Du » Wed Mar 13, 2019 10:11 pm

Yes, if it is not one of the reactants of the first step, it would be an intermediate instead.

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