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Chapter 20
Chapter 20: Oxidation Reduction Reactions
| Question | Answer |
|---|---|
| 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. |