The chemical reaction would be written as follows:
Li2SO4 + Ca(NO3)2 >> CaSO4 + 2 LiNO3
I believe from the products it would be calcium sulfate that is the precipitate since it has low solubility with water. Hope this answers the question.
A solution of calcium nitrate (ca(no3)2) is mixed with a solution of lithium carbonate (li3co3). what precipitate will form in the reaction? calcium sulfate