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Solubility
Solubility Rules and Precipitation Reactions
15
Chemistry
Undergraduate 1
10/04/2011

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Term
Soluble Compounds (1) **ALWAYS SOLUBLE**
Definition
Compounds containing alkali metal ions (Li+, Na+, K+, Rb+, Cs+) and the ammonium ion (NH4+)
Term
Soluble Compounds (2) **ALWAYS SOLUBLE**
Definition
Nitrates (NO3-), Bicarbonates (HCO3-), and chlorates (ClO3-)
Term
Soluble Compounds (3) **EXCEPTIONS**
Definition
Halides (Cl-, Br-, I-)

EXCEPTIONS: Halides of Ag+, Hg2 2+, Pb2+
Term
Soluble Compounds (4) **EXCEPTIONS**
Definition
Sulfates (SO4 2-)

EXCEPTIONS: Sulfates of Ag+, Hg2 2+, Pb2+, Ca2+, Sr2+, and Ba2+
Term
Insoluble Compounds
Definition
Carbonates (CO3 2-), Phosphates (PO4 3-), Chromates (CrO4 2-), Sulfides (S 2-)

Hydroxides (OH-)
Term
Oxidation Number

Free Elements
Definition
Term
Oxidation Number

Ions composed of only one atom
Definition
Charge of ion
Term
Oxidation Number

Aluminum
Definition
+3
Term
Oxidation Number

Oxygen

Peroxide/Hydrogen Peroxide
Definition
-2

-1
Term
Oxidation Number

Hydrogen
Definition
+1

-1 When bonded to metals in binary comounds (LiH, etc.)
Term
Oxidation Number

Fluorine
Definition
-1
Term
Oxidation Number

Halogens (Cl, Br, I) when occurring as halide ions in their compounds
Definition
Negative Oxidation #s
Term
Oxidation Number

Halogens (Cl, Br, I) when combined with oxygen
Definition
Positive Oxidation #s
Term
Oxidation Number

Halogens (Cl, Br, I) when combined with oxygen
Definition
Positive Oxidation #s
Term
Highest Oxidation Number
Definition
Group number
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