Solving ionic equations

9. When aqueous silver(II) nitrate( AgNO3)reacts with aqueous sodium chromate(Na2)CrO4)), soluble sodium nitrate (NaNO3)) forms, and silver(II) chromate (Ag2)CrO4))precipitates out of solution.
a. Write the balanced complete ionic equation for this reaction.
b. Write the net ionic equation for this reaction.

the balanced molecular equation is Na2CrO4 (aq) -> 2NaNO3 (aq) -> Ag2CrO4 (s) if you need this to figure it out?

2AgNO3(aq) + Na2CrO4(aq) >>>>>>>>>> Ag2CrO4(s) + 2NaNO3(aq)

a) 2Ag+(aq) + 2NO3-(aq) + 2Na+(aq) + CrO4-2(aq) --> Ag2CrO4(s) + 2Na+(aq) + 2NO3-(aq)

b) 2Ag+(aq) + CrO4-2(aq) --> Ag2CrO4(s)