04_Oxidation Reduction - PracticePredict the products and...

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1 Practice—Predict the products and balance the equation. 2 HCl( aq ) + Ba(OH) 2 ( aq ) 2 H 2 O( l ) + BaCl 2 ( aq ) (H + + Cl ) + (Ba 2+ + OH ) → (H + + OH ) + (Ba 2+ + Cl ) HCl( aq ) + Ba(OH) 2 ( aq ) → H 2 O( l ) + BaCl 2 HCl( aq ) + Ba(OH) 2 ( aq ) Spectator Ions? Net Ionic Equation? Ba 2+ , Cl - H + ( aq ) + OH ( aq ) H 2 O( l )
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Oxidation Numbers To determine if an oxidation–reduction reaction has occurred, we assign an oxidation number to each element in a neutral compound or charged entity. 4 Fe( s ) + 3 O 2 ( g ) 2 Fe 2 O 3 ( s )
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Oxidation Numbers Elements in their elemental form have an oxidation number of 0. H 2 O 2 P 4 S 8 The oxidation number of a monatomic ion is the same as its charge. K + Cl - O 2- N 3-
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Oxidation Numbers Nonmetals tend to have negative oxidation numbers, although some are positive in certain compounds or ions. Oxygen has an oxidation number of −2, except in
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This note was uploaded on 11/08/2011 for the course CHM 2045 taught by Professor Geiger during the Fall '08 term at University of Central Florida.

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04_Oxidation Reduction - PracticePredict the products and...

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