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Homework Help: What is the meaning of this delta?

  1. Feb 13, 2006 #1
    What is the meaning of this delta?
    I think it may be the "agent" that provokes the reaction, but what is it?

    http://img451.imageshack.us/img451/8867/delta7ty.jpg [Broken]
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Feb 13, 2006 #2
    It means that it is heated.
  4. Feb 14, 2006 #3
    Thank you and sorry for the big white in the image!
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