1. Meaning of Suffixes

2. Suffixes have meaning “-ose” sugar “-ase” enzyme
“-ide” binary compound
sodium chloride (NaCl)
“-ite” or “-ate” polyatomic compound
sulfite (SO32-)
sulfate (SO42-) “-ate” means one more oxygen than “-ite”
“-ol” alcohol
methyl alcohol (methanol)
“-ose” sugar
sucrose
“-ase” enzyme
sucrase

3. Prefixes – Binary Molecular Compounds
Greek Prefixes for Two Nonmetals
Number Indicated Prefixes
1 mono
2 di
3 tri
4 tetra
5 penta
6 hexa
7 hepta
8 octa
9 nona
10 deca

4. Binary Molecular Compounds
N2O dinitrogen monoxide
N2O3 dinitrogen trioxide
N2O5 dinitrogen pentoxide
ICl iodine monochloride
ICl3 iodine trichloride
SO2 sulfur dioxide
SO3 sulfur trioxide

5. Oxidation States in Formulas and Names
Traditional System Stock System
dinitrogen monoxide N2O nitrogen (I) oxide
dinitrogen trioxide N2O nitrogen (III) oxide
dinitrogen pentoxide N2O5 nitrogen (V) oxide
sulfur dioxide SO sulfur (IV) oxide
sulfur trioxide SO sulfur (VI) oxide