Formula

Naming of Acids:
a) The name of binary acids (acids containing hydrogen and one more element)are given by adding prefix hydro- and suffix-ic to the name of second element.
Examples:
i) Acids of hydrogen and chlorine  is (HCl) hydrochloric acid.
ii)Acid of hydrogen and  fluorine is (HF) hydrofluoric acid.
b) The names of acid containing radicals or polyatomic groups are given on the  basis of second element, but prefix hydro- is not used.
Examples:
i)H₂SO₄         Sulphuric acid.
ii)H₂CO₃        Carbonic acid
Naming of bases
Bases contaning -OH radical are names as hydroxides, after the name of metal.
Examples:
i)NaOH           Sodium hydroxide.
ii)NH₄OH        Ammonium hydroxide.
Trivial Names or Common Names:
    There are certain names of compounds  which do not follow any systematic rule.Such names are called trivial names or common names. Chemists have not  considered wise to replace these names by systematic names as they are widely understood by the common man.
Examples:
i)Common name for nitrogen trihydride is ammonia [NH₃]
ii)Common name for sodium chloride is table salt [NaCl]
iii)Common name for hydrogen hydroxide is water [H₂O]