Вычислите объёмы (см³; н.у.) 2 молекул кислорода и 4 атомов железа (d = 8 г/см³). 1) 7,44·10⁻²⁰; 2) 4,65·10⁻²⁰; 3) 7,44·10⁻²³; 4) 4,65·10⁻²³.

  1. 1, 2
  2. 1, 4
  3. 2, 3
  4. 3, 4
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