Question

write the molecular, ionic and net ionic equation for the following

Ph(NO3)2 + NaOH
Pb(NO3)2 + Na2CO3

Ni(NO3)2 + NaOH
Ni(NO3)2 + Na2Co3

Answer 1

recognize what is going to precipate, that takes those ions in solution out.
For instance on first.

Pb(NO3)2+NaOH>> Pb(OH)2 precipates, so net ionic is ...
Pb++ + OH- >> Pb(OH)2