11-25-08[lecture21]jr

11-25-08[lecture21]jr - CHEM 116 Notes for 11/25/08 Lecture...

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Unformatted text preview: CHEM 116 Notes for 11/25/08 Lecture 21 JR Electrochemistry Overview - Know how to recognize a redox (electron transfer) reaction - Oxidation vs. Reduction There are two ways to know whether oxidation or reduction is occurring: 1. Loss of electrons is oxidation. Gain of electrons is reduction ( LEO the lion says GER). o LEO: Lose Electrons = Oxidation o GER: Gain Electrons = Reduction 2. If reduction is occurring, the oxidation number is moving down the number line. If oxidation is occurring, the oxidation number is moving up the number line. Agent: that which causes o Example: the oxidizing agent causes oxidation. (Usually the oxidizing agent is the species that is getting reduced) For the Final Exam you need to: Assign oxidation numbers to elements to figure out which species contain elements that are changing. Balance redox reactions in neutral, acid, and base solutions....
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This note was uploaded on 12/02/2011 for the course PHYSICS 235 taught by Professor Staff during the Fall '08 term at Rutgers.

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11-25-08[lecture21]jr - CHEM 116 Notes for 11/25/08 Lecture...

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