Is My Net Ionic Equation for Sulfur Trioxide and Carbon Dioxide Correct?

[hola]

I need to include net ionic eq, phase symbols, etc.
1. Sulfur trioxide is heated with carbon dioxide.
2. A solution of strontium chloride is mixed with a solution of sodium sulfate.
3. Hydrochloric acid is added to sodium hydroxide

My work:
1. SO3(g)+H2O(l)---->H2SO4(aq)
2. Sr^{2+}(aq)+SO4^{2-}------> SrSO4(s)
3. HCl(aq)+NaOH(aq)------->H2O(l)+NaCl(aq)
H^{+}(aq)+OH^{-}(aq)----->H2O(l)

Are these right? Any corrections?

 

[andrewchang]

carbon dioxide?

 

[dm84z28]

the first one is def. wrong. where did u get H20 as a reactant? the original problem states "Sulfur trioxide is heated with carbon dioxide." Re-work the first one, and for a hint, there will be no net ionic reaction for this one b/c nothing is in solution.

the second one is right. the overall is SrCl2 + Na2SO4 ---> SrSO4 + 2 NaCl, and the net ionic reation you have looks good.

the third on looks ok, but I am not too sure. that chemistry is now buried under a semester of organic chem, so forgive me if I am rusty