Does anyone know an explanation for this reaction Pb(NO3)2 + K2CrO4 --> PbCrO4 + 2 KNO3?

Question

Thank you

Answer 1

This is a double replacement reaction. your two reactants are both an element combined with a polyatomic ion. The polyatomic ions do not brake apart or anything they keep whole. The lead and the potassium won't combine so the only thing left is the chromate making lead chromate.
Now you combine the remaining two parts left; potassium and the nitrate to make potassium nitrate.
Or simplier put, the outside parts go together and the inside parts go together.
After you combine them you have to make sure the formulas are right by using the charges that exist on each part.
the lead has two extra electrons that it wants to give away to become "happy" and the chromate wants to gain two electrons to become "happy" so the lead and the potassium combine.
hope this helps.

Answer 2

You'll get a beautiful yellow precipitate of insoluble lead chromate, PbCrO4 - the yellow colour of double yellow lines on the roads.

Answer 3

ok so.....i don't know what exactly do you mean by an "explanation" but ...this is a double displacement equation where lead nitrate reacts with potassium chromate to produce lead chromate and potassium nitrate