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    Introductory Chemistry Atoms First
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    Exam 9: Stoichiometry and the Mole
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    An Iron Oxide Is 70
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An Iron Oxide Is 70

Question 186

Question 186

Multiple Choice

An iron oxide is 70.0% in iron. Its empirical formula is ________.


A) FeO
B) Fe2O
C) Fe2O₃
D) Fe₃O₄

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