Вычислите массу (г) 800 атомов магния.

  1. 3,2·10⁻²³
  2. 1,86·10⁻²⁶
  3. 3,2·10⁻²⁰
  4. 1,86·10⁻²³
20 / 76 (26%)
Question 20 of 76
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