Чему равна масса 100 атомов азота (г)?

  1. 2,325·10⁻²¹
  2. 2,325·10⁻²⁴
  3. 4,65·10⁻²¹
  4. 1,39·10⁻²²
19 / 76 (25%)
Question 19 of 76
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