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OpenStudy (anonymous):
hello, i need help with oxidation problems.what is the number of oxidation : Cr2O2-7. i thought that Cr is +7. since 2(x)+(-14)=0
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OpenStudy (vincent-lyon.fr):
As the anion bears a -2 charge, your equation should read: 2x + (-14) = total charge = -2 Hence x = 6
OpenStudy (anonymous):
Thank you so much !
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