20 Polyatomic ions, Solubility rules, & Strong Acids and Bases

Thiocyanate

SCN -1

Oxalate

C2O4 -2

Dichromate

Cr2O7 -2

Sulfite

SO3 -2

Hydronium

H3O +1

Thiosulfate

S2O3 -2

Nitrite

NO2 -1

Acetate

C2H3O2 -1

Bicarbonate

HCO3 -1

Permanganate

MnO4 -1

Cyanide

CN -1

Sulfate

SO4 -2

Hydroxide

OH -1

Carbonate

CO3 -2

Chlorate

ClO3 -1

Ammonium

NH4 +1

Phosphate

PO4 -3

Nitrate

NO3 -1

Chromate

CrO4 -2

Perchlorate

ClO4 -1

Are compounds containing alkali metal ions (Li+, Na+, K+, Rb+, Cs+) soluble or insoluble?

Solube

Is ammonium ion (NH4 +1) soluble or insoluble?

Soluble

Are nitrates (NO3 -1) soluble or insoluble?

Soluble

Are bicarbonates (HCO3 -1) soluble or insoluble?

Soluble

Are acetates (C2H3O2 -1 or CH3COO -1) soluble or insoluble?

Soluble

Are perchlorates (ClO4 -1) soluble or insoluble?

Soluble

Are chlorates (ClO3 -1) soluble or insoluble?

Soluble

Are halides (Cl-, Br-, I-) soluble or insoluble?

Soluble, except when combined with Ag+, Hg2 +2, or Pb +2

Are sulfates (SO4 -2) soluble or insoluble?

Soluble, except when combined with Ag+, Ca +2, Sr +2, Ba +2, Hg2 +2, or Pb +2

Are carbonates (CO3 -2) soluble or insoluble?

Insoluble, except when combined with alkali metals (group 1), ammonium (NH4 +1), or barium (Ba +2)

Are phosphates (PO4 -3) soluble or insoluble?

Insoluble, except when combined with alkali metals (group 1), ammonium (NH4 +1), or barium (Ba +2)

Are chromates (CRO4 -2) soluble or insoluble?

Insoluble, except when combined with alkali metals (group 1), ammonium (NH4 +1), or barium (Ba +2)

Are fluorides (F-) soluble or insoluble?

Insoluble, except when combined with alkali metals (group 1), ammonium (NH4 +1), or barium (Ba +2)

Are sulfides (S -2) soluble or insoluble?

Insoluble, except when combined with alkali metals (group 1), ammonium (NH4 +1), or barium (Ba +2)

Is CuI2 soluble or insoluble?

Insoluble

Strong acids

HI, HBr, HClO4, HCl, HClO3, H2SO4, HNO3

Strong bases

NaOH, KOH, LIOH, RbOH, CsOH, Ca(OH)2, Ba(OH)2, Sr(OH)2