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OpenStudy (anonymous):
A 13.5-gram piece of iron reacts with 1.4 grams of oxygen to form a compound. What is the percent composition of this compound? A. 13.5% Fe, 1.4% O B. 24.2% Fe, 8.8% O C. 9.64% Fe, 10.4% O D. 90.6% Fe, 9.4% O E. 18.9% Fe, 81.1% O
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OpenStudy (chmvijay):
D. 90.6% Fe, 9.4% O
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