Solubility rules Flashcards
1
Q
Always soluble
A
- Group 1 metals
- NH4+
- NO3-
- ClO3-
- C2H3O2-
2
Q
Mostly soluble
A
- Halides
- Except heavy metals
- Pb, Hg, Ag
- Sulfates SO4-2 except with heavy metal or group II metal
3
Q
Mostly insoluble
A
- OH-
- Sulfides (S-2)
- Except: golden rule, group II metals
4
Q
Almost always insoluble
A
- PO4-3
- CO3-2
- CrO4-2
- O-2
- Exceptions: golden rule