Solubility Rules

Question 1

Alkali Metals

Answer 1

Always Soluble

Question 2

NH4+

Answer 2

Ammonium, Always Soluble

Question 3

NO3-

Answer 3

Nitrate, Always Soluble

Question 4

ClO3-

Answer 4

Chlorate, Always Soluble

Question 5

ClO4-

Answer 5

Perchlorate, Always Soluble

Question 6

C2H3O2-

Answer 6

Acetate, Always Soluble

Question 7

Cl-

Answer 7

Soluble except Ag+, Pb2+, (Hg2)2+

Question 8

Br-

Answer 8

Soluble except Ag+, Pb2+, (Hg2)2+

Question 9

I-

Answer 9

Soluble except Ag+, Pb2+, (Hg2)2+

Question 10

F-

Answer 10

Soluble except Ca2+, Sr2+, Ba2+, Pb2+

Question 11

(SO4)2-

Answer 11

Sulfate, Soluble except Ca2+, Sr2+, Ba2+, Pb2+

Question 12

O2-

Answer 12

Insoluble except Ammonium and Alkali Metals

Question 13

OH-

Answer 13

Insoluble except Ammonium and Alkali Metals

Question 14

(CO3)2-

Answer 14

Carbonate, Insoluble except Alkali Metals and Ammonium

Question 15

(PO4)3-

Answer 15

Phosphate, Insoluble except Alkali Metals and Ammonium

Question 16

S2-

Answer 16

Insoluble except Alkali Metals and Ammonium

Question 17

(SO3)2-

Answer 17

Sulfite, Insoluble except Alkali Metals and Ammonium

Question 18

(C2O4)2-

Answer 18

Oxalate, Insoluble except Alkali Metals and Ammonium

Question 19

(CrO4)2-

Answer 19

Chromate, Insoluble except Alkali Metals and Ammonium