Answer:- A precipitate of [tex]BaSO_4[/tex] is formed and the spectator ions are [tex]Na^+[/tex] and [tex]Cl^-[/tex] .
Explanations:- A double replacement reaction takes place. In double replacement reaction, the ion exchange takes place and we write the products. Then we use the solubility chart to check if a precipitate forms.
The balanced molecular equation is:
[tex]Na_2SO_4(aq)+BaCl_2(aq)\rightarrow 2NaCl(aq)+BaSO_4(s)[/tex]
From solubility chart barium sulfate is insoluble so its precipitate is formed. sodium and chlorine ions are spectator ions as shown in the below ionic equation.
[tex]2Na^+(aq)+SO_4^-^2(aq)+Ba^+^2(aq)+2Cl^-(aq)\rightarrow 2Na^+(aq)+2Cl^-(aq)+BaSO_4(s)[/tex]
The net ionic equation is:
[tex]SO_4^-^2(aq)+Ba^+^2(aq)\rightarrow BaSO_4(s)[/tex]
So, the spectator ions are [tex]Na^+[/tex] and [tex]Cl^-[/tex] and a precipitate of [tex]BaSO_4[/tex] is formed.
