Lauren H. answered 04/19/19
7 years experience teaching High School Chemistry and Honors Chemistry
From the Internet: Solubility: Barium Chromate is insoluble in water but soluble in acids. If At 25 Degrees C, the molar solubility of barium chromate in water is 1.1 x 10^-5 M = 2.787 x 10^-3 g/L
No, calcium oxalate, CaC2O4 , is not soluble in aqueous solution. The solubility of calcium oxalate is listed at 6.7 mg/L, or 6.7⋅10−3g/L , far less than the 1 g/L threshold used to distinguish between soluble and insoluble compounds. In fact, calcium oxalate is one of the major components of kidney stones.