Will the double displacement reactions below actually occur? Why or why not? Can a double displacement reaction occur if both products are aq???

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Answer 1 · 2017-08-15T17:15:15

All of these are solubility equilibria, in the first case driven by the formation of insoluble $AgCl$ .....

$NaCl(aq) +AgNO_3(aq)rarrAgCl(s)darr + NaNO_3(aq)$

Silver chloride precipitates as a curdy, white solid.

$Ba(NO_3)_2(aq) + 2KCl(aq) rightleftharpoons BaCl_2(aq) + 2KNO_3(aq)$

Here, the equilibrium mixture would simply contain $Ba^(2+)$ , $K^+$ , $NO_3^-$ , and $Cl^-$ ions......

And likewise for the last reaction.....

$Li_2SO_4(aq) + 2NH_4NO_3(aq) rarr 2LiNO_3(aq) + (NH_4)_2SO_4(aq)$

And here the equilibrium mixture contains, lithium, ammonium, nitrate, and sulfate ions in solution, with no precipitation of an insoluble material.