Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will form, enter its empirical formula in the last column.

solution A	solution B	Does a precipitate form when A and B are mixed?		empirical formula of precipitate
sodium carbonate	lead(II) nitrate	yes	no
iron(II) iodide	zinc sulfate	yes	no
potassium sulfide	copper(II) bromide	yes	no