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Topic: Oxidation number  (Read 4076 times)

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rsixtyone

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Oxidation number
« on: October 06, 2005, 10:36:57 PM »
hello all, in this formula:
K2Cr2O7

What is the oxidation number of chromium?

I got +6 somehow:

2 + 2Cr - 14 = 0
2Cr - 12 = 0
2Cr = 12
Cr = +6

Is that correct?
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Offline mike

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Re:Oxidation number
« Reply #1 on: October 06, 2005, 10:40:43 PM »
yes

hexavalent chromium featured in the movie Erin Brockovich
« Last Edit: October 06, 2005, 10:43:50 PM by mike »
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