AP Chemistry
1.3 Elemental Composition of Pure Substances
An iron ore sample contains various iron oxides. A student analyzes three pure samples of iron oxides: \(\text{FeO}\), \(\text{Fe}_2\text{O}_3\), and \(\text{Fe}_3\text{O}_4\). Which of the following lists the three oxides in order of greatest to least mass percent of iron (\(\text{Fe}\))?
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