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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…

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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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?

asked
User Klik
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8.4k points

1 Answer

4 votes

Answer:

15.05+7.75÷21×100=

Step-by-step explanation:

total mass÷atomic nass×100

answered
User Hyamanieu
by
7.8k points
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