Вычислите объёмы (см³; н.у.) 5 молекул азота и 8 атомов меди (d = 8,96 г/см³). 1) 1,86·10⁻¹⁹; 2) 8,93·10⁻²²; 3) 1,86·10⁻²²; 4) 9,49·10⁻²³.

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