Magnesium combines with oxygen to form magnesium oxide. If 15.05 g of magnesium reacts completely with 7.57 g of oxygen, what is the percent by mass of oxygen in magnesium oxide?

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asked Dec 22, 2021 43.2k views

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Magnesium combines with oxygen to form magnesium oxide. If 15.05 g of magnesium reacts completely with 7.57 g of oxygen,

what is the percent by mass of oxygen in magnesium oxide?

Chemistry
high-school

Klik asked

by Klik

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1 Answer

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Answer:

15.05+7.75÷21×100=

Step-by-step explanation:

total mass÷atomic nass×100

Hyamanieu answered Dec 28, 2021

by Hyamanieu

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