Compounds Fall 2015 Page 2
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1
2
Name
Formula :
E.g. iron (II) chloride = FeCl
2
make sure it is a binary ionic compound.
look at periodic table to determine charges.
net ionic charge must be zero.
sodium bromide
magnesium iodide
iron (II) oxide
CaOH
vs. Ca(OH)
2
2
Ternary Ionic Compounds have three or more different elements.
identify the compound as a ternary ionic compound.
name the cation and the polyatomic ion.
balance charges.
don't forget to use Roman numerals with transition elements.
Note: compounds
ending in –ate, -ite,
usually indicate ternary
ionic compounds. Use
CaCO
calcium nitrate
sodium sulfate
the polyatomic ions
3
chart!
Binary Molecular Compounds are made up of two non-metals. We don’t need
Prefixes for Binary
Molecular Compounds
to worry about ionic charges.
use the prefixes to show numbers of atoms for each element.
Prefix
Number
the first element is the element name. The second element ends in –ide.
mono-
1
di-
2
tri-
3
Also, CO is
carbon monoxide,
not
monocarbon monooxide .
tetra-
4
penta-
5
hexa-
6
hepta-
7
octa-
8
nona-
9
deca-
10
CO
boron trichloride
SO
2
3
Names of Common Acids
You must have these
names memorized!
hydrochloric acid – HCl
acetic acid – HC
H
O
2
3
2
sulfuric acid – H
SO
phosphoric acid – H
PO
2
4
3
4
nitric acid – HNO
carbonic acid – H
CO
3
2
3
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