Chemistry, 22.04.2021 18:20 weeblordd

Magnesium oxide (MgO) forms when magnesium metal burns in air. (a) If 1.25 g of MgO contains 0.754 g of Mg, what is the mass percent of Mg in MgO? (b) What is the mass percent of O in MgO? c) How many micrograms of oxygen are in 534 kg of MgO?

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