Chem 131 Naming Compounds

Acetate

C2H3O2-

Carbonate

CO3 2-

Hydrogen carbonate (bicarbonate)

HCO3-

Hydroxide

OH-

Nitrite

NO2-

Nitrate

NO3-

Chromate

CrO4 2-

Dichromate

Cr2O7 2-

Phosphate

PO4 3-

Hydrogen phosphate

HPO4 2-

Dihydrogen phosphate

H2PO4-

Ammonium

NH4+

Hypochlorite

ClO-

Chlorite

ClO2-

Chlorate

ClO3-

Perchlorate

ClO4-

Permanganate

MnO4-

Sulfite

SO3 2-

Hydrogen sulfite (bisulfite)

HSO3-

Sulfate

SO4 2-

Hydrogen sulfate (bisulfate)

HSO4-

Cyanide

CN-

Peroxide

O2 2-

What defines an IONIC compound?

A metal and a nonmetal

How do you name an ionic compound when the metal forms only ONE type of ion?

Name of cation (metal) + base name of anion (nonmetal) + -ide

How do you name an ionic compound when the metal forms MORE than one type of ion?

Name of cation (metal) + charge of cation in Roman numerals in parentheses + base name of anion (nonmetal) + -ide

What defines a MOLECULAR compound?

Nonmetals only

How do you name a molecular (covalent) compound?

Prefix + name of 1st element + prefix + base name of 2nd element + -ide

What defines an ACID?

H and one or more nonmetals (acids must be in aqueous solution)

What are the two categories of acids?

Binary acids (two elements) and oxyacids (contain oxygen)

How do you name a binary acid?

hydro- + base name of nonmetal + -ic + acid

How do you name an oxyacid derived from a polyatomic ion ending in -ate?

Base name of oxyanion + -ic + acid

How do you name an oxyacid derived from a polyatomic ion ending in -ite?

Base name of oxyanion + -ous + acid