Question

Mark the chemical formulas as Soluble or Insoluble using the solubility rules.
Soluble
Insoluble

Ca3(PO4)2
NH4OH
AgNO3
BaSO4

Answer 1

Here are the solubility classifications for the given chemical formulas based on common solubility rules:

1. **Ca3(PO4)2** - Insoluble
2. **NH4OH** - Soluble (ammonium hydroxide, dissociates into NH4+ and OH- ions)
3. **AgNO3** - Soluble (nitrate salts are generally soluble)
4. **BaSO4** - Insoluble (most sulfate salts are soluble, but barium sulfate is an exception)

To summarize:
- **Ca3(PO4)2** - Insoluble
- **NH4OH** - Soluble
- **AgNO3** - Soluble
- **BaSO4** - Insoluble