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(catalina) (catalina)
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11 years ago
. What are the oxidation states of the following balanced equation?

3Zn + 2CoCl3 ? 3ZnCl2 +2Co

Zn:     , Co     : , Cl     : ? Zn      : , Co     :, Cl:     ,

Which of the following elements have been:

Oxidized:
Reduced:
Unchanged:
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wrote...
11 years ago
Since zinc is a pure element it has an oxidation state of 0.
Co has an oxidation state of +3 and Cl has -1
The Zinc in ZnCl2 has an oxidation state of +2 and Cl is -1  
Pure Co has an oxidation state of 0
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