PRA042 - Oxygen is reduced, going from a 0 to 2 oxidation...

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Oxidation and Reduction Practice In each of the following equations, indicate the element that has been oxidized and the one that has been reduced. You should also label the oxidation state of each before and after the process: 1) 2 Na + FeCl 2 2 NaCl + Fe 2) 2 C 2 H 2 + 5 O 2 4 CO 2 + 2 H 2 O 3) 2 PbS + 3 O 2 2 SO 2 + 2 PbO 4) 2 H 2 + O 2 2 H 2 O 5) Cu + HNO 3 CuNO 3 + H 2 6) AgNO 3 + Cu CuNO 3 + Ag For chemistry help, visit www.chemfiesta.com © 2003 Cavalcade Publishing – All Rights Reserved
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Oxidation and Reduction Practice - Solutions In each of the following equations, indicate the element that has been oxidized and the one that has been reduced. You should also label the oxidation state of each before and after the process: 1) 2 Na + FeCl 2 2 NaCl + Fe Sodium is oxidized, going from a 0 to +1 oxidation state. Iron is reduced, going from a +2 to 0 oxidation state. 2) 2 C 2 H 2 + 5 O 2 4 CO 2 + 2 H 2 O Carbon is oxidized, going from a –1 to +4 oxidation state.
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Unformatted text preview: Oxygen is reduced, going from a 0 to 2 oxidation state. 3) 2 PbS + 3 O 2 2 SO 2 + 2 PbO Sulfur is oxidized, going from a 2 to +4 oxidation state. Oxygen is reduced, going from a 0 to 2 oxidation state. 4) 2 H 2 + O 2 2 H 2 O Hydrogen is oxidized, going from a 0 to +1 oxidation state. Oxygen is reduced, going from a 0 to 2 oxidation state. 5) Cu + HNO 3 CuNO 3 + H 2 Copper is oxidized, going from a 0 to +1 oxidation state. Hydrogen is reduced, going from a +1 to 0 oxidation state. 6) AgNO 3 + Cu CuNO 3 + Ag Copper is oxidized, going from a 0 to +1 oxidation state. Silver is reduced, going from a +1 to 0 oxidation state. For chemistry help, visit www.chemfiesta.com 2003 Cavalcade Publishing All Rights Reserved...
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This note was uploaded on 11/13/2010 for the course CHEM 11578 taught by Professor Juliakovacs during the Fall '09 term at University of Washington.

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PRA042 - Oxygen is reduced, going from a 0 to 2 oxidation...

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