1/20
Chlorite
2/20
Nitrite
3/20
Perchlorate
4/20
Dichromate
5/20
Nitrate
6/20
Cyanide
7/20
Phosphate
8/20
Hydrogen Carbonate
9/20
Carbonate
10/20
Acetate
11/20
Chlorate
12/20
Chromate
13/20
Hydrogen Phosphate
14/20
Permanganate
15/20
Sulfite
16/20
Sulfate
17/20
Ammonium
18/20
Hydroxide
19/20
Dihydrogen Phosphate