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Ionic equations and Spectator Ions question REALLY SHORT

  1. Apr 10, 2008 #1
    1. The problem statement, all variables and given/known data
    Pb(NO3)2(aq) + H2SO4(aq) → PbSO3(s) + HNO3(aq)
    Pb + (NO3)2(aq) + H2 + SO4(aq) → PbSO3(s) + H + NO3(aq)

    3. The attempt at a solution

    So far I've done that, and now I'm stuck I see h2 and h 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?
     
  2. jcsd
  3. Apr 10, 2008 #2
    H2 is a gas. H2SO4 (aq) only releases H+ ions.
     
  4. Apr 10, 2008 #3
    can i get rid of them or no?
     
    Last edited: Apr 10, 2008
  5. Apr 10, 2008 #4
    Could Snazzy be saying you won't get HNO3? rather H + NO3 ???
     
  6. Apr 10, 2008 #5
    no i copied exactly the way it is from my prentice hall chem book hwork assignment
     
  7. Apr 10, 2008 #6
    wait there is a problem
    Pb(NO3)2(aq) + H2SO4(aq) → PbSO4(s) + HNO3(aq)
    Pb + (NO3)2(aq) + H2 + SO4(aq) → Pb + SO4(s) + H + NO3(aq)
     
  8. Apr 10, 2008 #7
    To balance I think you get
    Pb(NO3)2(aq) + H2SO4(aq) --> PbSO4(s) + 2HNO3(aq)

    if that helps any.
     
  9. Apr 10, 2008 #8
    ok
    thanks
     
  10. Apr 10, 2008 #9
    I know, not much help. Sorry :(
     
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