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ARC-Easy / CSZ20770 / Iron oxides, such as rust, form when iron metal reacts with oxygen in the air.…

Problem

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question

Iron oxides, such as rust, form when iron metal reacts with oxygen in the air. What are the chemical symbols for the two elements found in iron oxide?

choices

  • I and O
  • Ir and O
  • Fe and O
  • Pb and O

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