Chapter 9: How Chemicals React
A third way to increase the rate of a chemical reaction is to add a catalyst, which is a chemical that may participate in the chemical reaction but is not consumed by the chemical reaction. The catalyst works by lowering the energy of activation. Duration: 7:49.
This video lesson is pretty much a review of the previous video lesson. Only a few new concepts are introduced. This includes an explanation for how a catalyst transforms the energy of activation for a reaction. Biological catalysts, called enzymes, are also discussed. Duration: 4:37.
Maile talks about how Kai's ability to bring couples together is somewhat analogous to how some catalysts work. This is particularly true for the biological catalysts known as enzymes. Duration: 2:02.
Vocabulary Flash Cards for Conceptual Chemistry, Chapter 9.
Watch these additional videos to complete this tutorial.