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Easy question

  1. Sep 28, 2008 #1
    I have noticed recently that when I pour coca-cola ( from a regular red can ) into a plastic cup then mix crown royal in it that this produces "eruptions", small streams of liquid shooting up from the surface of the drink. What is causing these? I have mixed drinks many times and never noticed this in any other combination
  2. jcsd
  3. Sep 28, 2008 #2
    This could be similar to the known mentos-soda reaction, where the gum arabic in the mentos react with the soda gas.
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