Naming Compounds
Graphic Organizer
and
Practice Problems
Organic
Naming Compounds
-if it’s a
metal
Check 1st Element
-if it’s a H
-if it’s a
nonmetal
Ionic
Molecular
Acid
Split into ions
Check charge for
transition metals
Cation- same
as element
-ide(anion),
-ate(anion),
hydro____ic acid
____ic acid
Anion- -ide or
polyatomic
Put together ions so
net charge is 0
-if you have
C and H
-ite(anion),
____ous acid
# of H’s match the
charge of the anion
*Name elements
from left to right
using the periodic
table
*use prefixes to tell
how many
*end in -ide
Practice Part 1
 FeS
 NCl3
 First element is a
metal, so it is ionic
 First element is a
nonmetal, so it is
molecular
 Cation would be iron
 Anion would be
sulfide
 Iron (II) sulfide
 Nitrogen trichloride
Practice Part 1 (cont.)
 CoSO4
 H3PO3
 First element is a
metal
 First element is H,
so it is an acid
 Cobalt (II) Sulfate
 Normally would end
in -ite, so should be
an -ous acid
 Phosphorous acid
Practice Part 2
 potassium sulfide
 Hydrobromic acid
 First element is a
metal, so it is ionic
 Its is a hydro __ic
acid, so it should
end with -ide
 Potassium ion is K+
 Sulfide ion is S2 To balance charges
it should be K2S
 Bromide has a -1
charge
 HBr
Practice Part 2 (cont.)
 Tin (IV) chloride
 Dinitrogen pentoxide
 Starts with a metal,
so it is ionic
 Uses prefixes so it is
molecular
 (IV) means tin has a
+4 charge
 Di means it has 2
nitrogens
 Chloride has a -1
charge
 Pent means it has 5
oxygens
 SnCl4
 N2O5