Which is an example of a precipitation reaction?


A.

A solution of HCl mixes with a solution of NaOH to produce a solution of NaCl.


B.

A solution of AgNO3 mixes with a solution of NaCl to produce solid AgCl and a solution of NaNO3.


C.

Solid C6H12O6 combines with O2 gas to produce CO2 gas and H2O gas.


D.

Solid Fe combines with O2 gas to produce solid Fe2O3.