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what is found in an impure mixture of iron ore

A 752-g sample of impure iron ore is heated withexcess carbon,producing 453 g of pure iron by the following reaction: Fe 2 O 3 (s) + 3 C (s) → 2 Fe (s) + 3 CO (g) What is the mass percent of Fe 2 O 3 in the impure iron ore sample? Assume that Fe 2 O 3 is the only source of …

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