dtraylor dtraylor
  • 01-02-2017
  • Chemistry
contestada

Which is a pair of allotropes?
molecular oxygen and ozone

diamond and carbon dioxide

carbon-14 and carbon-12

iron(III) oxide and iron(II) oxide

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answerrrmeee
answerrrmeee answerrrmeee
  • 01-02-2017
1st one I think.........................
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