abdurazakleyla abdurazakleyla
  • 13-05-2018
  • Chemistry
contestada

What is the oxidation number for Al in Al₂O₃?

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mkryukova19 mkryukova19
  • 13-05-2018
Oxygen in oxides has oxidation number -2.

Al⁺³₂O⁻²₃

+3*2 -2*3=0
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