Solubility rules

• Give an example of an alkali metal cation that is soluble in water.

  Sodium (Na⁺)
• What is an example of a compound containing an ammonium cation that is soluble in water?

  Ammonium chloride (NH₄Cl)
• Which anions are included in the "Always Soluble" group?

  F⁻, Cl⁻, Br⁻, I⁻, NO₃⁻, CH₃COO⁻
• Match the property with whether it describes a soluble or insoluble compound:

  Soluble ↔️ Forms a clear solution

  Insoluble ↔️ Forms a cloudy solution
• According to the solubility table, which Group 1 compound is insoluble?

  None
• Match the solubility group with the corresponding anions:

  Always Soluble ↔️ F⁻, Cl⁻, NO₃⁻

  Usually Soluble ↔️ SO₄²⁻, CrO₄²⁻

  Usually Insoluble ↔️ CO₃²⁻, OH⁻, S²⁻
• In which industry are solubility rules used to ensure ingredients dissolve correctly?

  Food Industry
• What is the chemical formula for Barium Sulfate?

  $BaSO₄$
• What are exceptions to the solubility rules in chemistry?

  Compounds containing insoluble combinations
• Why is Sodium Nitrate (NaNO₃) soluble in water?

  Alkali metal nitrates are soluble
• In what industry are solubility rules used to predict chemical reactions?

  Chemistry Labs
• Lead(II) Chloride will dissolve in water.

  False
• Lead Sulfate (PbSO₄) is soluble in water.

  False
• Why are solubility rules important in drug formulation?

  Effective drug delivery
• Why is Lead(II) Chloride (PbCl₂) insoluble in water?

  Chlorides are insoluble with lead