JOURNAL # 62
Write
the formula for the
following compounds:
1. Sulfur
trioxide
2. Iodine trichloride
3. Phosphorus pentabromide
4. Hydrochloric acid
TODAY, WE WILL NAME AND
ACIDS AND SALTS
COVALENT-NETWORK COMPOUNDS
Some covalent compounds do not consist of
individual molecules
 Instead, each atom is joined to all its neighbors in
a covalently bonded 3-D network.
 The subscripts indicate the smallest whole
number ratio of the atoms in the compound.

COVALENT-NETWORK COMPOUNDS
 Naming
such compounds is similar
to naming molecular compounds.
 Examples:
SiC
 SiO2
 Si3N4

ACIDS
We will further study acids in detail later in the year.
 Binary acids are acids that consist of 2 elements,
usually hydrogen and one of the halogens- fluorine,
chlorine, bromine, iodine
 Oxyacids are acids that contain hydrogen, oxygen, and
a third element (usually a nonmetal).
 Acids usually refer to a solution in water


Example: hydrochloric acid refers to a water solution of the
molecular compound HCl.
ACIDS
 Many
polyatomic ions are produced by the
loss of hydrogen ions form oxyacids.
 Examples:
Sulfuric Acid, H2SO4 sulfate
 Nitric Acid, HNO3 nitrate
 Phosphoric Acid, H2PO4 phosphate

COMMON BINARY ACIDS AND OXYACIDS
Name
Formula
HF
Hydrofluoric acid
HCl
Hydrochloric acid
HBr
Hydrobromic acid
HI
Hydriodic acid
H3PO4
Phosphoric acid
HNO2
Nitrous acid
HNO3
Nitric acid
H2SO3
Sulfurous acid
H2SO4
Sulfuric acid
CH3COOH
Acetic acid
HClO
Hypochlorous acid
HClO2
Chlorous acid
HClO3
Chloric acid
HClO4
Perchloric acid
H2CO3
Carbonic acid
SALTS
Salt- an ionic compound composed of a cation and
the anion form an acid
 Example:
 Table salt, NaCl, contains the anion from
hydrochloric acid.
 Calcium Sulfate, CaSO4 is a salt containing an
anion from sulfuic acid.
 Some salts contain anions in which one or more
hydrogen atoms from the acid are retained
 Such anions are named by adding the word
hydrogen or the prefix bi Examples: H2CO3  carbonic acid
HCO3-  bicarbonate ion or
hydrogen carbonate ion

LET’S PRACTICE
 Write
the formulas for each of the
following compounds:
 Diphosphorus trioxide
 Hydrofluoric acid
 Hydrobromic acid
 Nitric acid
 Sulfuric acid
 Phosphoric acid
LET’S PRACTICE
 Write
the formulas for each of the
following compounds:





H2SO3
HClO3
HCl
HClO
H2CO3