В сосуд, содержащий 11,2 L (н.у.) фосфина, добавили метан. При какой массе (g) метана число атомов водорода станет в 5 раз больше числа атомов углерода?

  1. 12
  2. 16
  3. 24
  4. 48
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Question 62 of 69
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