Identifying Catalysts in a reaction

[Bronson Mathos 1H]

Hello, I am a bit lost on one of the points on the outline stating that we need to be able to identify catalysts in a reaction, from what I know its usually written above the yield arrow of a reaction, but I was wondering if there if something I am missing or if that is the only idea we need to understand in terms of identification ?

[Kyle Walsh 2J]

Hi! I believe sometimes we are asked to be able to identify the catalysts/intermediates in reactions when we aren't explicitly given them (or they aren't written above the reaction arrow). I'm pretty sure that Sapling question #18 deals with this topic, so that could be more specific practice. Hope this helps!

[Randi Ruelas 1G]

Hi! I believe a catalyst is used at the beginning of the reaction and regenerated at the end. An intermediate is produced during the reaction but no longer exists by the end. So I guess we can discover what is the catalyst by what stays in the overall reaction

[Angelica Soriano 3L]

To add on to what the last person said before me, the catalyst isn't formed during the mechanism.

[Inderpal Singh 2L]

A catalyst is used at the beginning and created once again at the end!

[Susanna Givan 2B]

We can generally deduce which one is the catalyst by looking at what started off in the reactants of the reaction and what stayed in the products, as the catalyst will get used up and then it will get regenerated.