Write the ionic equation for the reaction of lead 2 nitrate reacting with the acidic solution to form a precipitate

What ppt do you want. If you wand PbCl2 then

Pb(NO3)2(aq) + 2HCl(aq) --> PbCl2(s) + 2HNO3(aq)
Pb^2+(aq) + 2Cl^-(aq) ==> PbCl2(s)