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Kirolos M.

asked • 07/02/20

please need help in this chemistry question with a reasonable explanation

You heat 3.854 g of a mixture of Fe3O4 and FeO to form 4.148 g Fe2O3. The mass percent of FeO originally in the mixture was:

A) 92.9%

B) 55.8%

C) 44.2%

D) 38.5%

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