When lead(II) nitrate solution is added to potassium iodide solution, solid lead (II) iodide forms and potassium nitrate solution?: Nomenclature, Formula writing and chemical equations  

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1. Must figure out the empirical forms  of each the compounds: 

Lead(II) nitrate = Pb(NO3)2

Potassium iodide = KI 

Lead(II) iodide = PbI2 

Potassium nitrate = KNO3 

2. Then set up a balanced equation: 

Pb(NO3)2 + 2KI ----> PbI2 + 2KNO2 

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