anonymous
  • anonymous
1.Which element is oxidized in the following reaction:
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1439756726884:dw|
anonymous
  • anonymous
#taramgrant0543664 help please
taramgrant0543664
  • taramgrant0543664
I'm sorry I can't see part of the reaction it's up a little high and too much too the right, I'm on my iPad so it likes to be difficult I see CuO+H2-->Cu + That's all that I see I'm assuming if I have the reactants right it should be CuO+H2 --> Cu+ H2O

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anonymous
  • anonymous
yes
taramgrant0543664
  • taramgrant0543664
So when dealing with redox reactions most people have a saying that helps them remember mine is LEO the lion says GER LEO meanings lose electrons oxidized GER meaning gain electrons reduced For this question we need to determine which one loses electrons to become oxidized
taramgrant0543664
  • taramgrant0543664
CuO + H2 --> Cu + H20 We need to figure out the charges on each of the elements (+2)(-2)..(0) -->(0)..(+1)(-2)
taramgrant0543664
  • taramgrant0543664
As you can see oxygens charge remains at -2 so oxygen is neither oxidized or reduced
taramgrant0543664
  • taramgrant0543664
Cu goes from a charge of +2 to 0 H goes from a charge of 0 to +1 Which one is losing electrons?
anonymous
  • anonymous
cuo+h2 right
taramgrant0543664
  • taramgrant0543664
The element that is oxidized is the one that loses electrons so it becomes more positive
anonymous
  • anonymous
ok
taramgrant0543664
  • taramgrant0543664
Cu goes from a charge of +2 to 0 H goes from a charge of 0 to +1 One is gaining electrons and therefore reduced One is losing electrons therefore oxidized

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