When aqueous solutions of barium chloride and sodium sulfate are combined

CHEMISTRY · Single correct · AP · Chemistry · Chemical Reactions · Chemical Reactions

Problem

When aqueous solutions of barium chloride and sodium sulfate are combined, a white solid is observed. Which of the following net ionic equations best represents the chemical change that occurs? (a) BaCl2(aq)+Na2SO4(aq)→BaSO4(s)+2 NaCl(aq)\text{BaCl}_2(aq)+\text{Na}_2\text{SO}_4(aq) \rightarrow \text{BaSO}_4(s)+2\,\text{NaCl}(aq) (b) 2 Na+(aq)+SO42−(aq)→Na2SO4(s)2\,\text{Na}^{+}(aq)+\text{SO}_4^{2-}(aq) \rightarrow \text{Na}_2\text{SO}_4(s) (c) Ba2+(aq)+SO42−(aq)→BaSO4(s)\text{Ba}^{2+}(aq)+\text{SO}_4^{2-}(aq) \rightarrow \text{BaSO}_4(s) (d) Ba2+(aq)+2 Cl−(aq)→BaCl2(s)\text{Ba}^{2+}(aq)+2\,\text{Cl}^{-}(aq) \rightarrow \text{BaCl}_2(s)

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