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Homework Help: Ionic equation

  1. Jul 7, 2010 #1
    1. The problem statement, all variables and given/known data
    Identify if a reaction is likely to occur, and write a net ionic equation:

    a) Chromium dipped into silver nitarte
    b) Gold immersed into hydrochloric acid

    2. Relevant equations

    3. The attempt at a solution

    a) Cr(s) + 3AgNO3(aq) ---> Cr(NO3)3(aq) + 3Ag(s)
    Cr(s) + 3Ag(aq) + 3(NO3)(aq) ---> Cr(aq) + 3NO3(aq) + 3Ag(s)
    Cr(s) + 3Ag(aq) ---> Cr(aq) + 3Ag(s)

    I'm pretty sure this is right.... but could anyone confirm? I think it's just an example of ionic displacement right?

    b) From doing some research I think that no reaction will occur with gold and sulfuric acid, but why is this? Can anyone hep me out with where I should be referencing this information? Thanks.
  2. jcsd
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