High School Science Activity: Oxidation Numbers

Oxidation numbers are used to keep track of the electrons that are lost or gained during an electrochemical reaction. In this activity you can test your knowledge and practice using examples. Use the hints and rules available if you get stuck on a question.

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This activity can be found in our High School Chemistry course.

Course Details:

This course surveys all key areas of chemistry, including atomic structure, chemical bonding and reactions, solutions, stoichiometry, thermochemistry, organic chemistry, and nuclear chemistry. The course includes direct online instruction, virtual laboratories, and related assessments, used with a problem-solving book.

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