# How do you write a complete balanced reaction of aqueous lead (II) nitrate, Pb(NO_3)_2, and aqueous potassium chloride, KCL?

$P b {\left(N {O}_{3}\right)}_{2} \left(a q\right) + 2 K C l \left(a q\right) \rightarrow P b C {l}_{2} \left(s\right) \downarrow + 2 K N {O}_{3} \left(a q\right)$
How did I know that $P b C {l}_{2}$ was insoluble? Chemistry is an experimental science and this is something that you must learn. All halides are soluble, EXCEPT for lead(II) chloride, mercurous chloride ($H {g}_{2} C {l}_{2}$), and silver chloride, $A g C l$.