What Ionic Compounds are Soluble or Insoluble ?
Answer
Always check Solubility Rules Table [attached]. If insoluble, then the symbol (s) for solid is used. If soluble, then the symbol (aq) for aqueous solution is used.
Examples. 1] KI is soluble because compounds of iodide ion are soluble [except AgI and the 2 others listed on
the TABLE].
2] PbS is insoluble because it is a sulfide and Not an exception to the rule.