Question

Which is a description of a precipitation reaction?


A.
Water decomposes to form hydrogen and oxygen.


B.
Lead combines with oxygen to produce lead oxide.


C.
Potassium iodide is added to lead nitrate to produce an insoluble yellow solid, lead iodide.


D.
Sulfuric acid combines with sodium hydroxide to produce water and sodium sulfate.

Answer 1

idk this one

Answer 2

thanks anyway^

Answer 3

the answer is c..it leads to the formation of an insoluble compoud.