Question: 4 . Catalyst is a substance that _ _ _ _ _ _ _ _ _ _ _ a ) Can either increase or decrease

4. Catalyst is a substance that ___________
a) Can either increase or decrease the speed of a chemical reaction
b) Alters the value of the equilibrium constant in a reversible chemical reaction
c) Increases the speed of a chemical reaction
d) Decreases the speed of a chemical reaction

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