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Title: An iron oxide is 72.4% in iron. Its empirical formula is ________. Post by: cynthiaa on Jan 28, 2017 An iron oxide is 72.4% in iron. Its empirical formula is ________.
A) FeO B) Fe2O C) Fe2O3 D) Fe3O4 Title: Re: An iron oxide is 72.4% in iron. Its empirical formula is ________. Post by: soleil on Jan 28, 2017 Content hidden
Title: Re: An iron oxide is 72.4% in iron. Its empirical formula is ________. Post by: cynthiaa on Jun 27, 2017 Thx!
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