Stoichiometry

Alkali metal compounds

are ALL soluble (Alkali Metals are on the first column of the periodic table)

NH₄⁺ compounds

are ALL soluble

Compounds containing Nitrate(NO₃⁻), Chlorate(ClO₃⁻), and Perchlorate(CIO₄⁻)

are ALL soluble

OH⁻ compounds

are INSOLUBLE, with exceptions of Alkali Metal hydroxide compounds and Barium Hydroxide(Ba(OH)₂)

Chlorides(Cl⁻), Bromides(Br⁻), and Iodides(I⁻)

are SOLUBLE, with exceptions of Silver(Ag⁺), Mercurous(Hg₂²⁺), and Plumbous(Pb²⁻) compounds.

Carbonate(CO₃²⁻), Phosphate(PO₄³⁻), and Sulfide(S²⁻) compounds

are INSOLUBLE, with exceptions of Alkali Metal compounds (Alkali Metals are on the first column of the periodic table)

Sulfate(SO₄²⁻) compounds

are SOLUBLE, with the exceptions of Barium(Ba²⁺), Mercuric(Hg²⁺), and Plumbous(Pb²⁻) compounds.

Synthesis/combination reactions

2 reactants form 1 product.
General form: A+X=AX
Abbreviated "syn"

Decomposition reactions

1 reactant forms 2 products.
General form: AX=A+X
Abbreviated "decomp"

Double Displacement/Double Replacement

2 reactants form 2 products. Ions switch what they are bonded to.

General form: AX+BY=AY+BX
Abbreviated "DD" or "DR"

Single Displacement

2 reactants, one of which is a cation or anion, may be switched with the other reactant.

Use activity series of metals and remember that F₂>Cl₂>Br₂>I₂.

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Decomp reaction with Metal Hydroxide

Products are metal oxide and water.

Decomp reaction with Metal Chlorate

Products are metal chloride and O₂

Syn reaction with Metal Oxide and Water

Product is metal hydroxide

Complete Combustion reaction

Only products are CO₂ and H₂O