Question

PLEASE help me with this

Answer 1

When you mix aqueous solutions of KI and Pb(NO3)2, you get a yellow suspension (precipitate) of lead iodide.

                    Pb(NO3)2(aq) + 2KI(aq) = PbI2(s) + 2KNO3(aq)

PbI2 is insoluble in water and so it is precipitated as a yellow solid (suspension). It can be separated by filtration. A colloid cannot be separated by ordinary filtration, as the smaller colloidal particles are uniformly distributed in the entire medium.

Since KNO3 formed is a soluble salt, it remains in solution.
It is a double displacement reaction

Answer 2

precipitate colour is yellow.and compounds are pbi2+kno3
it is double displacement reaction .