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Volgvan
3 years ago
15

I'm so confused. If anyone could help me that would be amazing!

Chemistry
1 answer:
pantera1 [17]3 years ago
7 0
Well that depends on what you need help on, fist of all :)
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If 10.57 g of magnesium reacts completely with 6.96 g of oxygen, what is the percent by mass of oxygen in magnesium oxide? Round
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Answer:

39.7 %

Explanation:

magnesium + oxygen ⟶ magnesium oxide

   10.57 g         6.96 g               17.53 g

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