1. Module 3

1.18. Page 5

Lesson 3

Module 3—Electrochemical Reactions

Lesson Summary

 

In Lesson 3 you considered the following questions:

  • How can combinations of species act together as oxidizing or reducing agents?

  • Can half-reactions be used to predict and explain changes that occur within a chemical system?

  • Can the same substance be the oxidizing agent and the reducing agent in an electrochemical process?

Redox reactions can involve a variety of substances, which sometimes act in combination to promote the oxidation or reduction of other substances. You learned that half-reactions can be used to describe the chemical changes that occur within a system. If provided with a table of half-reactions written as reductions, you are able to predict which combinations of substances will react spontaneously.