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Homework Help: Ionic equations and Spectator Ions

  1. Apr 10, 2008 #1
    This is my reaction
    Pb(NO3)2(aq) + H2SO4(aq) → PbSO4(s) + HNO3(aq)
    Pb + (NO3)2(aq) + H2 + SO4(aq) → PbSO4(s) + H + NO3(aq)

    So far I've done that, and now I'm stuck I see h2 and h and NO3 2 molecules and on the left side i see only one NO3 molecule on the right, can I cross out both or do i have to balance right now? My teacher said you can balance at the end. Can i cross out one h on the left and the remaining on the right? What about NO3?
  2. jcsd
  3. Apr 10, 2008 #2
  4. Apr 11, 2008 #3
    What is this? (NO3)2, SO4, NO3, don't exist free.
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