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_________________________________________________________________________A. Binary Compounds - 2
nonmetallic elements
1.
2.
3.
4.
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Name first element by element name
Name second element as a separate word with root and "ide" ending
Use prefixes di, tri, tetra, penta, etc.
There are exceptions
Examples:
CCl4 carbon tetrachloride
P2O5 diphosphorus pentoxide
NO nitrogen oxide
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B. Binary Salts - metal and nonmetal
1. Name metal by element name
2. Indicate oxidation number (charge) with a Roman numeral in parentheses if metal has more
than one oxidation state- most p, d and f-block metals
3. Name the second element as a separate word with root and "ide" ending
4. There are exceptions
Examples:
MgCl2 magnesium chloride
Ca3N2 calcium nitride
MnI3 manganese(III) iodide
FeO iron(II) oxide
AlBr3 aluminum bromide
_________________________________________________________________________C.
Acids
i) Oxyacids
1. Learn these five acids as exemplary for the acids of element below them in the
Periodic Chart (exception: nitric acid)
HClO3 chloric acid
H2SO4 sulfuric acid
HNO3 nitric acid H2CO3 carbonic acid
H3PO4 phosphoric acid
2. Learn the system of prefixes and suffixes as in the following
HBrO4 perbromic acid (one more oxygen than bromic acid)
HBrO3 bromic acid
HBrO2 bromous acid (one less oxygen than bromic acid)
HBrO hypobromous acid (two less oxygens than bromic acid)
Examples:
HNO2 nitrous acid
H2SO3 sulfurous acid
HClO4 perchloric acid
ii) Halogen acids (only in aqueous solution)
use the prefix hydro- and the suffic -ic
Examples:
HCl (aq) hydrochloric acid
A)
HBr (aq) hydrobromic acid
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D. Salts of oxyacids
1. Name cation first
2. Name the oxyanion as a separate word
To name the oxyanion:
Start with the complementary acid
HBr hydrogen bromide (see part
Change the "ic" suffix to "ate" and the "ous" to "ite"
Examples:
NaClO2 sodium chlorite
Mn(BrO)2 maganese (II) hypobromite
Fe2(SO4)3 iron(III) sulfate