# Question #78139

$N {a}_{2} S {O}_{4} \left(a q\right) + C a C {l}_{2} \left(a q\right) \to 2 N a C l \left(a q\right) + C a S {O}_{4} \left(s\right)$
Calcium sulphate has poor solubility in aqueous solution. Hence, only $N a C l$ will measurably dissociate. $C a S {O}_{4}$ will precipitate in a significant amount d/t its low ${K}_{s p}$ ($2.4 \cdot {10}^{-} 5$).