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CHEM 115
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Activity Series

Li > K > Ba > Sr > Ca > Na > Mg > Al > Mn > Zn > Fe > Cd > Co > Ni > Sn > Pb > (H) > Cu > Ag > Hg > Au

 

  Solubility Rules for Ionic Compounds

Compounds containing the following ions are generally soluble in water:

  1. Alkali metal ions and ammonium ion
  2. Acetate ion
  3. Nitrate ion
  4. Halide ions (X) (AgX, Hg2X2, and PbX2 are insoluble exceptions)
  5. Sulfate ion (SrSO4, BaSO4, and PbSO4,  are insoluble exceptions)

Compounds containing the following ions are generally insoluble in water:

  1. Carbonate ion (see rule 1 exceptions, which are soluble)
  2. Chromate ion (see rule 1 exceptions, which are soluble)
  3. Phosphate ion (see rule 1 exceptions, which are soluble)
  4. Sulfide ion (CaS, SrS, BaS, and rule 1 exceptions are soluble)
  5. Hydroxide ion [Ca(OH)2, Sr(OH)2, Ba(OH)2, and rule 1 exceptions are  soluble]
Last Updated: 06/11/2015
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