Question

define the term catalyst.
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Answer 1

catalyst is a substance that speeds up the reaction.

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Answer 2

Answer:

A catalyst is a substance that speeds up a chemical reaction, but is not consumed by the reaction; hence a catalyst can be recovered chemically unchanged at the end of the reaction it has been used to speed up, or catalyze. ... A catalyst works by providing a different route, with lower Ea, for the reaction.

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