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UNIVERSIDAD NACIONAL AUTONOMA DE MÉXICO
CCH-Naucalpan
Química III
Balanceo por Redox
Por: Chávez García Diana Laura
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Zn + S ZnS1
2
3
4
2(Zn Zn) 2(S S)
-3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3
Oxidación (-e) Reducción (+e)
0 2+ 0 2-
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7
6
5
Zn – 2e Zn
S + 2e S
0 _ 2+
0 _ 2-
Zn + S Zn + S0 0 2+ 2-
1 -Zn- 1
1 -S- 1
La ecuación esta balanceada