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SOLUBILITY RULES
HUH
8
Chemistry
Undergraduate 3
03/14/2010
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Term
What are the 3 ions that ALWAYS form soluble ionic compounds?
 Definition
Na+  K+  NH4+
Term
NITRATES (NO3-)
 Definition
SOLUBLE. NO EXCEPTIONS.
Term
CHLORIDE (Cl-), BROMIDE (Br-), AND IODIDE (I-)
 Definition
SOLUBLE. EXCEPTIONS ARE Pb2+, Hg22+, Ag+, AND Cu+.
Term
SULFATE (SO42-)
 Definition
SOLUBLE. EXCEPTIONS ARE BaSO4, SrSO4, PbSO4.
Term
SULFIDES (S2-)
 Definition
INSOLUBLE. EXCEPTIONS ARE MgS, CaS, SrS, BaS.
Term
OXIDES (O2-)
 Definition
INSOLUBLE. EXCEPTIONS ARE SrO, BaO.
Term
HYDROXIDES (OH-)
 Definition
INSOLUBLE. EXCEPTIONS ARE Sr(OH)2, Ba(OH)2.
Term
CHROMATES (CrO42-) PHOSPHATES (PO43-), CARBONATES (CO32-)
 Definition
INSOLUBLE. 
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