Relate chemical activity to oxidizing and reducing strength. Explain the concept of...
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![Page 1: Relate chemical activity to oxidizing and reducing strength. Explain the concept of disproportionation.](https://reader036.fdocuments.in/reader036/viewer/2022082817/56649dac5503460f94a9c24d/html5/thumbnails/1.jpg)
Chapter 19: Oxidation-Reduction Reactions
Section 3: Oxidizing and Reducing Agents
![Page 2: Relate chemical activity to oxidizing and reducing strength. Explain the concept of disproportionation.](https://reader036.fdocuments.in/reader036/viewer/2022082817/56649dac5503460f94a9c24d/html5/thumbnails/2.jpg)
Objectives
• Relate chemical activity to oxidizing and reducing strength.
• Explain the concept of disproportionation.
![Page 3: Relate chemical activity to oxidizing and reducing strength. Explain the concept of disproportionation.](https://reader036.fdocuments.in/reader036/viewer/2022082817/56649dac5503460f94a9c24d/html5/thumbnails/3.jpg)
• A reducing agent is a substance that has the potential to cause another substance to be reduced.
• An oxidizing agent is a substance that has the potential to cause another substance to be oxidized.
Strengths of Oxidizing and Reducing Agents
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Strengths of Oxidizing and Reducing Agents, continued
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Strengths of Oxidizing and Reducing Agents, continued
• Different substances can be compared and rated by their relative potential as reducing and oxidizing agents.
• The negative ion of a strong oxidizing agent is a weak reducing agent.
• The positive ion of a strong reducing agent is a weak oxidizing agent.
![Page 6: Relate chemical activity to oxidizing and reducing strength. Explain the concept of disproportionation.](https://reader036.fdocuments.in/reader036/viewer/2022082817/56649dac5503460f94a9c24d/html5/thumbnails/6.jpg)
Disproportionation
• A process in which a substance acts as both an oxidizing agent and a reducing agent is called disproportionation.
• A substance that undergoes disproportionation is both self-oxidizing and self-reducing.
› example: Hydrogen peroxide is both oxidized and reduced
-1 -1 0 2 2 2 22H O 2H O O