Which of the Following Statements About a Catalyst Is True

question 11

Multiple Choice

Which of the following statements about a catalyst is true?

• A)A catalyst accelerates a reaction by changing the amount of reactant and product at equilibrium.
• B)A catalyst accelerates a reaction by lowering the energy of activation.
• C)A catalyst accelerates a reaction by raising the energy of activation.
• D)A catalyst accelerates a reaction by lowering the equilibrium constant.

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Definitions:

Therapsids

A group of mammal-like reptiles of the Permian period; gave rise to the mammals.

Chordates

A large phylum of animals that includes all vertebrates as well as several closely related invertebrates, characterized by the presence of a notochord at some stage of their development.

Monotremes

Egg-laying mammals, such as the platypus and echidna, representing a unique branch of the mammalian tree.

Parthenogenesis

The development of an unfertilized egg into an adult organism; common among honeybees, wasps, and certain other arthropods.