Identify the true statement(s) (a) A catalyst is chemically unchanged at the end of a reaction (...

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Identify the true statement(s)
(a) A catalyst is chemically unchanged at the end of a reaction
(b) A catalyst may appear in the kinetic rate equation of the reaction
(c) A catalyst will not affect the composition of an equilibrium mixture
(d) A catalyst cannot cause a non-spontaneous \( (\Delta \mathrm{G}0) \) reaction to proceed
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