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saintsfan2004
21.10.2020 •
Chemistry
The number of molecules in 48.0 grams of oxygen gas (o2) is—
A) 6.02 x 10^23
B) 9.03 x 10^23
C) 1.20 x 10^24
D) 1.81 x 10^24
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Ответ:
c) 242
Explanation:
you subtract 238-92= 146 then you add 146+90+4+2 that will give you 242