What two soluble aqueous reactants could be used to prepare a precipitate of mercury I chromate

1 answer

A few seconds with google turned up this video, which says:

Mercury(I)chromate Hg2[CrO4] forms quite readily when K2[CrO4] and Hg2Cl2 are heated in solution.

www.youtube.com/watch?v=hfwg9DFXA40