Red-hot iron reacts with steam: 3Fe + 4H₂O → Fe₃O₄ + 4H₂. What mass of Fe₃O₄ (232 g/mol) forms from 16.8 g of iron?

ChemistryHardHigh School (9–10)GeneralMetals and Non-metals › Reactions and the Reactivity Series

Red-hot iron reacts with steam: $3\text{Fe} + 4\text{H}_2\text{O} \rightarrow \text{Fe}_3\text{O}_4 + 4\text{H}_2$ . What mass of $\text{Fe}_3\text{O}_4$ ( $232\ \text{g/mol}$ ) forms from $16.8\ \text{g}$ of iron?

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