A 5.05 g sample of quartz (SiO2) contains 2.36 g of silicon. What are the percentages of silicon and oxygen in quartz?
A) 53.3% Si and 46.7% O
B) 46.7% Si and 53.3% O
C) 29.9% Si and 70.1% O
D) 70.1% Si and 29.9% O
E) 46.7% Si, and insufficient information to calculate % O
Correct Answer:
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