Chemistry, 31.10.2020 23:40, carolelai08

A sample of metal weighing 2.51 g is combined with oxygen; the metal oxide weighs 3.01 g. The mass percent of oxygen in the compounds is __ [A] 16.6%
[B] Cannot be determined from the given information
[C] 19.9%
[D] 83.4%
[E] 50.0%

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A sample of metal weighing 2.51 g is combined with oxygen; the metal oxide weighs 3.01 g. The mass p...