Ch4(9)Sept29Fa08a

Ch4(9)Sept29Fa08a - CHEM 109 General Chemistry University...

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CHEM 109 General Chemistry University of Nebraska Fall 2008 Monday 29 September 2008
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Loss of electrons by a substance - ________ Gain of electrons by a substance – ________ The oxidizing agent is itself _______ The reducing agent is itself _______ Oxidation-Reduction Reactions Reactions that involve a transfer of electrons
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Oxidation-Reduction Reactions For the following reactions, which is reduced and oxidized and what are the reducing and oxidizing agents? N 2 ( g ) + 3H 2 ( g ) 2NH 3 ( g ) 2AgNO 3 ( aq ) + Cu ( s ) Cu(NO 3 ) 2 ( aq ) + 2Ag ( s )
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Oxidation numbers are simply a ___________ method for keeping track of the “charge” of an element in a chemical compound.
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The oxidation number of an _____ in a molecule is the charge the atom would have if electrons were not shared but were transferred completely. OXIDATION NUMBER (or oxidation state) The oxidation number of an ____ in an ionic compound is its ionic charge.
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The sum of the oxidation numbers of all atoms in a neutral compound is __________
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This note was uploaded on 09/22/2009 for the course CHEM 109 taught by Professor Hart during the Spring '09 term at Nebraska Christian.

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Ch4(9)Sept29Fa08a - CHEM 109 General Chemistry University...

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