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rule 1
Group 1A and ammonium compounds are soluble.
rule 2
Acetates and nitrates are soluble.
rule 3
Most chlorides, bromides and iodides are soluble, except for compounds containing Ag+, Pb2+, Hg22+, HgBr2 and HgI2.
rule 4
Most sulfates are soluble, except for CaSO4, SrSO4, BaSO4, Ag2SO4, Hg2SO4 and PbSO4.
rule 5
Most carbonates are insoluble, except for group 1A carbonates and (NH4)2CO3.
rule 6
Most phosphates are insoluble, except for group 1A phosphates and (NH4)3PO4.
rule 7
Most sulfides are insoluble, except for group 1A sulfides and (NH4)2S.
rule 8
Most hydroxides are insoluble, except for group 1A hydroxides, Ca(OH)2, Sr(OH)2 and Ba(OH)2.