Question

A student has mixed the solution of Lead Nitrate and potassium iodide (1)what was the cause of the precipitate formed?can you name the compound precipitated? (2)write the balanced chemical equation for the for this reaction (3) ?what type of reaction is it

Answer 1

it is a redox rxn in which lead iodide is formed as black ppt.(PbI)
Pb(NO3)2 + KI ----> PbI + KNO3 now you may balance it.