Solubility Rules

Question 0

Generally Soluble (Aqueous)

Answer 0

Cl^-, Br^-, I^- except w/Ag^+, Pb^2+, Hg2^2+ (AP/H)

F^- except w/Ca^2+, Sr^2+, Ba^2+, Pb^2+, Mg^2+ (CBS-PM)2

SO4^2- except w/Ca^2+, Sr^2+, Ba^2+, Pb^2+ (CBS/PBS)2

Question 1

Always Soluble (Aqueous)

Answer 1

Alkali metals
NH4^+
NO3^-
ClO3^-
ClO4^-
C2H3O2^-

Question 2

Generally Insoluble

Answer 2

O^2-, OH^- except w/alkali metals, NH4^+, Ca^2+, Sr^2+, Ba^2+ (CBS/NBC)

CO3^2-, PO4^3-, S^2-, SO3^2-, C2O4^2-, CrO4^2- except w/alkali metals, NH4^4+