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Junior Member
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Jan 21, 2007, 04:45 AM
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Oxidation, reduction
Fe2O3 + 3H2 -> 2Fe + 3H2O
Which materials are reductants, which are oxidants?
Please explain the solution, too. Any help is appreciated :).
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Uber Member
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Jan 21, 2007, 05:22 AM
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The oxidants oxidise other compounds, i.e. they gain oxygen (or, more completely, they gain electrons). In your case this would be H2, as they take the oxygen from the Fe2O3.
Now use my logic to argue which are the reductants.
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Junior Member
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Jan 21, 2007, 05:40 AM
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Originally Posted by Capuchin
The oxidants oxidise other compounds, ie they gain oxygen (or, more completely, they gain electrons). In your case this would be H2, as they take the oxygen from the Fe2O3.
Now use my logic to argue which are the reductants.
So Fe is reductant, as he loses 3 electrons?
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Full Member
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Jan 21, 2007, 06:28 AM
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Thank you for posting your question to the Ask Me Help Desk.
Iron is reduced but it is because it gained three electrons.
Remember this as a tool...
OILRIG
Oxidation Is Loss, Reduction Is Gain
We are talking about electrons here.
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Uber Member
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Jan 21, 2007, 10:50 AM
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Ah yes! Ignore me, rudi is right.
It's been such a long time since I've had to think about this, my mind got confuddled.
Well done Rudi!
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New Member
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Jan 29, 2007, 04:26 PM
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Originally Posted by rudi_in
Thank you for posting your question to the Ask Me Help Desk.
Iron is reduced but it is because it gained three electrons.
Remember this as a tool...
OILRIG
Oxidation Is Loss, Reduction Is Gain
We are talking about electrons here.
I was taught a different acronym for remembering the difference between oxidation and reduction: LEO the lion says GER
Lose Electrons Oxidize, Gain Electrons Reduce
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