Chapter 7, Problem 61E

Pair each cation on the left with an anion on the right that will from an insoluble compound with it and write a formula for the insoluble compound. Use each anion only once.

${\text{Ag}}^{\text{+}}$	${\text{SO}}_{\text{4}}{}^{2-}$
${\text{Ba}}^{2+}$	${\text{Cl}}^{-}$
${\text{Cu}}^{\text{2+}}$	${\text{CO}}_{\text{3}}{}^{\text{2-}}$
${\text{Fe}}^{3+}$	${\text{S}}^{2-}$