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Representations of reactions

Problem

The solutions of BaClA2(aq) and NaA2COA3(aq) represented above are mixed, causing a precipitate to form. The balanced equation for the reaction is shown below.
BaClA2(aq)+NaA2COA3(aq)BaCOA3(s)+2NaCl(aq)
Which of the following diagrams best represents the mixture after the reaction has proceeded as completely as possible?
Choose 1 answer: