When aqueous solutions of Na2SO4 and BaCl2 are mixed

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

Problem

When aqueous solutions of Na2SO4 and BaCl2 are mixed, a white precipitate of BaSO4 forms. Which of the following ions is a spectator ion and therefore does NOT appear in the net ionic equation for this reaction? (a)

\text{Ba}^{2+}

(b)

\text{SO}_{4}^{2-}

(c)

\text{Cl}^-

(d)

\text{BaSO}_{4}\,(s)

Related theory

Double Displacement Reactions
Chemical Reactions and Equations

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