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USMLE Step 1 Mnemonics Mnemonics, acronyms, reminders, and memorizing tips for the USMLE Step 1.


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Old 03-17-2014
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Default Ferrous vs Ferric iron

I have a hard time remembering which type of iron (Fe+2 or Fe+3) binds to Oxygen and the name of it.

O2 only binds to Fe+2. Ferrous iron has a valence of 2

dous (close to "dos" in spanish which means TWO) sounds like Ferrous

For remembering that 'Ferrous iron' has 2 as valence, this might help to those of you who know some spanish.

Last edited by pbm8; 03-17-2014 at 07:42 PM. Reason: clarifying
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Old 04-27-2014
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Quote:
Originally Posted by pbm8 View Post
I have a hard time remembering which type of iron (Fe+2 or Fe+3) binds to Oxygen and the name of it.

O2 only binds to Fe+2. Ferrous iron has a valence of 2

dous (close to "dos" in spanish which means TWO) sounds like Ferrous

For remembering that 'Ferrous iron' has 2 as valence, this might help to those of you who know some spanish.


U can simplify that by considering "us" as two persons only.
So ferrous
So fe2+.
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