1. Using the guideline for oxidation numbers, write the oxidation half-reactions for the following (Hint. Some may have more than one oxidation number): Example: Na--> Na+1 + 1e- Fe--> K--> Be-->   2. Using the guideline for oxidation numbers, write the reduction half-reactions for the following (Hint: Some may have more than one oxidation number): Example: F + 1e- -->F O--> P--> Cu--> 3.Why do transition metals often have more than one oxidation state?

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Chapter17: Electrochemistry
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Hello, I need help with the following questions. 

1. Using the guideline for oxidation numbers, write the oxidation half-reactions for the following (Hint. Some may have more than one oxidation number):
Example: Na--> Na+1 + 1e-

  • Fe-->
  • K-->
  • Be-->

 

2. Using the guideline for oxidation numbers, write the reduction half-reactions for the following (Hint: Some may have more than one oxidation number):
Example: F + 1e- -->F

  • O-->
  • P-->
  • Cu-->

3.Why do transition metals often have more than one oxidation state?

 

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