Chemical Nomenclature Continued...

_{II. Molecular Compounds}

                        _A. Seven diatomic molecules

                        1. means 2 of the same element

                        2. HOFBrINCl

                                    a. H₂, O₂, F₂, Br₂, I₂, N₂, Cl₂

            B. Two polyatomic molecules

                        1. S₈, P₄

II. Naming molecular compounds

            A. Use the name of the first element

            B. The second element ends in "-ide"

            C. The first atom does not usually have a prefix

            D. Hydrogen does not get a prefix

Ex. Write the names of the following compounds

NO₂     ->        nitrogen dioxide

SBr₂    ->        sulphur dibromide

Ex. Write the chemical formulas for the following compounds

tetraphosphorus decaoxide                       ->        P₄O₁₀

carbon disulfide       ->        CS₂

IUPAC NAME	FORMULA
Water	H2O
Hydrogen Peroxide	H2O2
Ammonia	NH3
Glucose	C6H12O6
Sucrose	C12H22O11
Methane	CH4
Propane	C3H8
Octane	C8H18
Methanol	CH3OH
Ethanol	C2H5OH

III. Naming acids & bases

            A. Hydrogen compounds are acids

                        1.HCL_(aq) -> Hydrochloric acid

                        2. H₂SO_4(aq) -> Sulphuric acid

                        3. H₃PO₄ -> Phosphoric acid

                        4. HCN -> Cyanic acid

                        5. CH₃COOH -> Acetic acid

            B. Acids and Bases to memorize

                        1.HCL_(aq) -> Hydrochloric acid

                        2. H₂SO_4(aq) -> Sulphuric acid

                        3. H₃PO₄ -> Phosphoric acid

                        4. HCN -> Cyanic acid

                        5. CH₃COOH -> Acetic acid

                        *6. NH₃ -> Ammonia

            C. Naming bases

                        1.NaOH -> Sodium Hydroxide

                        2. Ba(OH)₂ -> Barium Hydroxide

Ex. Name the following

Mg(OH)₂ -> magnesium hydroxide

HOOCCOOH -> oxalic acid

-Nicole