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ikarus

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ikarus
Anyone know the chocolate bar invented in Berne?
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ikarus
49A Imide or Imine? Dictionary.com relates both to ammonia  but I'm not up to understanding the difference between the two. Any chemists out there?
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ikarus
  Struggling with one to do. 47a A???E?T?. A collection of excerpts from a literary work. Grateful for any help.

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