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n200080 [17]
2 years ago
8

Magnesium combines with oxygen to form magnesium oxide. If 10.57 g of

Chemistry
1 answer:
Phantasy [73]2 years ago
7 0

The total mass is 10.57+6.96=17.53 g.

So, the percent by mass of magnesium is (10.57)/(17.53) * 100 = <u>60.3%</u>

<u />

The percent by mass of oxygen is (6.96)/(17.53) * 100 = <u>39.7%</u>

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