A catalyst

(a)always slows down the reaction
(b)always starts a rection that would not have ocurred at
all otherwise
(c)causes changes in the rate of the reaction
(d)changes the quantities of the products formed.



A catalyst (a)always slows down the reaction (b)always starts a rection that would not have ocur..

Answer / happyguy

A catalyst causes changes in the rate of the reaction.

Ans (c).

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