# What would occur in the reaction between zinc sulfate and barium chloride?

$Z n S {O}_{4} \left(a q\right) + B a C {l}_{2} \left(a q\right) \rightarrow Z n C {l}_{2} \left(a q\right) + B a S {O}_{4} \left(s\right) \downarrow$
Most halides are soluble (the exceptions....$A g C l$, $H {g}_{2} C {l}_{2} , P b C {l}_{2}$). The given reaction is a so-called $\text{partner-exchange}$ or $\text{methathesis}$ reaction, that is driven to the right by the insolubility of one of the products..