I am in high school AP Chemistry and struggling with net ionic equations. While I prefer to work these sorts of problems out on my own, my test scores tell me otherwise.
I have several balanced chemical equations and (what I think are) their net ionic equations. If you haven't guessed already, I'd like you to double-check them and make sure I'm on the right track.
Due to Yahoo!'s utter failure with super and sub-scripts, I will use ' to indicate sub and ^ to indicate super, because charges are that annoying. States will be in brackets, and coefficients will be before the molecules. Sorry this looks condescending, but I don't want anyone getting confused and giving me an incorrect response.
THANK YOU SO MUCH!!!

Equations:
Sn(NO'3)'2[aq] + 2NaOH[aq] -> Sn(OH)'2[s] + 2NaNO'3[aq]
Net: Sn^2+[aq] + 2OH^1-[aq] -> Sn(OH)'2[s]

2NaOH[aq] + K'2SO'4[aq] -> Na'2SO'4[aq] + 2KOH[aq]
Net: 2Na^1+[aq] + 2OH^1-[aq] + 2K^1-[aq] + SO'4^2-[aq] -> 2Na^1+[aq] + SO'4^2-[aq] + 2K^1-[aq] + 2OH^1-[aq]

Na'2S[aq] + Cu(C'2H'3O'2)'2[aq] ->2Na(C'2H'3O'2)[aq] + CuS[s]
Net: S^2-[aq] + Cu^2+[aq] -> CuS[s]