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OpenStudy (anonymous):
2Mg + O2 = 2MgO What mass in grams if oxygen combines with 20.0 grams of magnesium in this same reaction?
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OpenStudy (anonymous):
20g Mg= .823 mol Mg\[.823*1molO _{2}/2molMg\] = .412molO2 = 13.2g O2
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