Intermediate Science Practice Exam: Biology, Chemistry, Physics

This practice exam features 10 challenging questions covering essential concepts in biology, chemistry, and physics, designed for intermediate learners looking to test their knowledge and improve their understanding of these fundamental sciences.

Question 32

In chemistry, what is the main role of a catalyst in a chemical reaction?

Lower the activation energy to speed up the reaction Change the equilibrium constant Slow down the reaction rate Increase the temperature of the reaction

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