## Chemistry and Chemical Reactivity (9th Edition)

a) $Ba(OH)_2(aq)+H_2SO_4(aq)\rightarrow BaSO_4(s)+2\ H_2O(l)$ b)$Ba^{2+}(aq)+ 2\ OH^-(aq) +2\ H_3O^+(aq)+ SO_4^{2-}(aq)\rightarrow BaSO_4(s)+4\ H_2O(l)$ c) Since there are no ions as products, diagram A is the one representing the change in electrical conductivity.