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Learn how to assign oxidation numbers and identify redox reactions with Khan Academy's free online course.
In redox reactions, both reduction and oxidation take place. Let's learn more about them.
In this eighth unit of class 11 chemistry, we will learn about redox reactions, oxidation numbers, types of redox reactions (disproportionation), balancing redox reactions, and standard electrode potentials.
Oxidation–reduction (redox) reactions. Worked example: Using oxidation numbers to identify oxidation and reduction. Balancing redox equations. Worked example: Balancing a simple redox equation. Worked example: Balancing a redox equation in acidic solution.
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Watch a video tutorial on how to balance a redox equation in basic solution using the half-reaction method. Practice with Khan Academy's exercises.
When a chemical goes from being an ion to a pure element, it indicates that a special type of reaction has occurred—an oxidation-reduction, or redox, reaction. These reactions are named this way because the oxidation state of a monatomic ion in solution is equal to its charge, while the oxidation state of a pure element is always zero.
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