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Chapter 20
Chapter 20: Oxidation Reduction Reactions
Question | Answer |
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Oxidation-reduction reactions: | reactions that involve the process of oxidation and reduction. |
Oxidation: | complete or partial loss of electrons or gain of oxygen. |
Reduction: | complete or partial gain of electrons or loss of oxygen. |
Reducing agent: | the substance that loses electrons. |
Oxidizing agent: | the substance that excepts electrons. |
Oxidation number: | a positive or negative number assigned to an atom to indicate its degree or oxidation or reduction. |
Oxidation-number-change method: | you balance a redox equation by comparing the increases and decreases in oxidation numbers. |
Half-reaction: | an equation showing just the oxidation or just the reaction that takes place. |
Half-reaction method: | you write and balance the oxidation and reduction half-reactions separately before combining them into a balanced redox equation. |