solubility rules

1st rule

most alkali metal salts and ammonium (NH+4) salts are soluble

2nd rule

most nitrates (NO3-) , acetates (CH3CO2-), and perchlorates (ClO4-) are soluble

3rd rule

most silver, lead, and mercury (I) salts are insoluble

4th rule

most chlorides(Cl-), bromides (Br-), and iodides (I-)are soluble

5th rule

most carbonates(CO^-2₃ ), chromates (CrO^2-₄₎, sulfides(S^2-), oxides(O^2-), phosphates (PO), and hydroxides (OH) are insoluble, except for hydroxides of Ba2+, Ca2+, and Sr2+, which are slightly soluble

6th rule

most sulfates (SO4) are soluble, except for calcium sulfate, barium sulfate, and strontium sulfate, which are insoluble