Chemistry 0620 · IGCSE · Formulae

Formulae — practice question

Determine the empirical formula for an iron oxide produced when $2.24\text{ g}$ of iron is reacted with $0.96\text{ g}$ of oxygen.

  • A$\text{FeO}$
  • B$\text{Fe}_2\text{O}$
  • C$\text{Fe}_2\text{O}_3$
  • D$\text{Fe}_3\text{O}_4$

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