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What catalyst is used to speed up a reaction but is not used up in the reaction?

In: Biology, Chemistry, Catalysts and Catalysis [Edit categories]

Answer:

Anything that acts that way is a catalyst. It is the definition.

First answer by Lazarus. Last edit by Lazarus. Contributor trust: 1071 [recommend contributor ]. Question popularity: 2 [recommend question].

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Relevant answers:

What catalyst is used to speed up a reaction?
Question doesn't make sense, a catalyst is a substance that initiates or accelerates a reaction
Why is a catalysts not used up in a reaction?
It is not used up as it is a substance that the reactants can stick to, so there are more successful collisions (collision theory), increasing the rate of reaction; as opposed to reacting with the...
Is the catalyst used up in reaction?
No the catalyst is not consumed in the reaction, this is part of the definition of a catalyst.
What is used to speed up chemical reactions?
1) heat 2) a catalyst 3) agitation
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