A catalyst speeds up a chemical reaction as a result of which of the following?

A) It increases the number of collisions between reacting molecules.
B) It makes the reaction more endothermic.
C) It makes the reaction more exothermic.
D) It provides an alternative reaction pathway.


D

Environmental & Atmospheric Sciences

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a. true b. false

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A) hurricanes B) malaria C) cholera D) mudslides

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