Answer : The name of the compound that precipitate is barium carbonate [tex](BaCO_3)[/tex].
Explanation :
Precipitation reaction : It is defined as the reaction in which an insoluble salt formed when two aqueous solutions are combined.
The insoluble salt that settle down in the solution is known an precipitate.
When aqueous solutions of barium nitrate and potassium carbonate are react then it gives aqueous solution of potassium nitrate and barium carbonate as a precipitate (in solid form).
The balanced chemical equation will be,
[tex]K_2CO_3(aq)+Ba(NO_3)_2(aq)\rightarrow 2KNO_3(aq)+BaCO_3(s)[/tex]
Hence, the name of the compound that precipitate is barium carbonate [tex](BaCO_3)[/tex].
