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Homework Help: Chemistry - Quick question about standard reductions of half-cells

  1. May 31, 2007 #1
    my teacher says that if you add acid to the solution then you don't use the H2) half reaction with the (10-7 M), but that you still do if you add a base. Is this true?
  2. jcsd
  3. Jun 5, 2007 #2
    I don't even know what you're question is... could you please specify what reaction or what is it that youre doing?
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