4.3 Oxidation Reduction Reactions | General Chemistry

Chad provides an introduction to Oxidation-Reduction Reactions (Redox Reactions for short) in this lesson.  Oxidation and reduction are both defined and two mnemonics (OIL RIG and LEO GER) are presented to help with remembering them.  The rules for determining oxidation states (aka oxidation numbers) are then presented with the oxidation states for the elements in several examples being determined.  It is then shown that oxidation-reduction reactions involve changes in oxidation states which can be used to identify them, but some short cuts are also provided for this purpose.  Finally, single replacement reactions are presented and it is shown how to use the Activity Series to identify when a single replacement reaction is spontaneous or not.

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00:00 Lesson Introduction
01:04 Oxidation and Reduction
04:23 How to Determine Oxidation States
12:24 Identifying Redox Reactions
18:20 Single Replacement Reactions

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