Chemistry: Things to Remember

Question 1

Acetate

Answer 1

C2H3O2^- or CH3COO^-

Question 2

Nitrate

Answer 2

NO3^-

Question 3

Hydroxide

Answer 3

OH^-

Question 4

Sulfate

Answer 4

SO4^2-

Question 5

Carbonate

Answer 5

CO3^2-

Question 6

Phosphate

Answer 6

PO4^3-

Question 7

Ammonium

Answer 7

NH4^+

Question 8

Li+

Answer 8

Generally soluble w/o exceptions

Question 9

Na+

Answer 9

Generally soluble w/o exceptions

Question 10

K+

Answer 10

Generally soluble w/o exceptions

Question 11

NH4+

Answer 11

Generally soluble w/o exceptions

Question 12

NO3-

Answer 12

Generally soluble w/o exceptions

Question 13

C2H3O2-

Answer 13

Generally soluble w/o exceptions

Question 14

Cl-

Answer 14

Insoluble when paired w/ Ag+, Hg2^2+, Pb^2+

Question 15

Br-

Answer 15

Insoluble when paired w/ Ag+, Hg2^2+, Pb^2+

Question 16

I-

Answer 16

Insoluble when paired w/ Ag+, Hg2^2+, Pb^2+

Question 17

SO4^2-

Answer 17

Insoluble when paired with Sr^2+, Ba^2+, Pb^2+, Ag+, Ca^2+

Question 18

OH-

Answer 18

Generally insoluble, except when paired with Li+, Na+, K+, NH4+, Ca^2+, Sr^2+, Ba^2+

Question 19

S^2

Answer 19

Generally insoluble, except when paired with Li+, Na+, K+, NH4+, Ca^2+, Sr^2+, Ba^2+

Question 20

CO3^2-

Answer 20

Generally insoluble, except when paired with Li+, Na+, K+, NH4+

Question 21

PO4^3-

Answer 21

Generally insoluble, except when paired with Li+, Na+, K+, NH4+