Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

Some broad guidelines for the solubility of salts in water are given below. • Carbonates do not dissolve in water (with the exceptions of ammonium carbonate, potassium carbonate and sodium carbonate). • Chlorides dissolve in water (except lead(II) chloride and silver chloride). • Nitrates dissolve in water. • Sulfates dissolve in water (except barium sulfate, calcium sulfate and lead(II) sulfate). Which substances give an insoluble salt when their aqueous solutions are combined?

  • Abarium chloride and magnesium nitrate
  • Bcalcium chloride and ammonium nitrate
  • Csilver nitrate and zinc chloride
  • Dsodium carbonate and potassium sulfate

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