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Flip Charts
Naming Compounds
Physical Science - Middle School
❮
1
/
2
❯
Naming
Covalent
Compounds
© Copyright NewPath Learning. All Rights Reserved. 94-4843
Visit
www.newpathlearning.com
for
Online
Learning
Resources.
Covalent
Formulas
The
molecular
formula
for
a
covalent
compound
can
be
derived
from
its
name
by
writing
the
symbols
for
the
first
and
second
element
and
translating
the
prefixes
into
subscripts.
For
example,
sulfur
trioxide
would
be
written
as
SO
3.
Naming
Covalent
Compounds
Covalent
compounds
are
named
in
a
similar
manner
to
binary
ionic
compounds.
(Binary
compounds
are
compounds
made
up
of
only
two
elements).
To
name
binary
covalent
compounds
apply
the
following
rules:
Sulfur
Trioxide
Carbon
Dioxide
Nitrogen
Triiodide
Carbon
Tetrachloride
SO
3
CO
2
NI
3
CCl
4
Sulfur
Trioxide
Carbon
Dioxide
Nitrogen
Triiodide
Carbon
Tetrachloride
SO
3
CO
2
NI
3
CCl
4
Sulfur
Trioxide
Carbon
Dioxide
Nitrogen
Triiodide
Carbon
Tetrachloride
SO
3
CO
2
NI
3
CCl
4
Sulfur
Trioxide
Carbon
Dioxide
Nitrogen
Triiodide
Carbon
Tetrachloride
SO
3
CO
2
NI
3
CCl
4
Naming
binary
covalent
compounds
Name
1st
nonmetal
Name
2nd
nonmetal,
add
ide
ending
1
2
Use
subscript
to
determine
prex
3
CCl
4
Carbon
Tetrachloride
Mono-
Di-
Tri-
Tetra-
Penta-
1
2
3
4
5
Hexa-
Hepta-
Octa-
Nona-
Deca-
6
7
8
9
10
CCl
4
Carbon
Tetrachloride
Mono-
Di-
Tri-
Tetra-
Penta-
1
2
#
of
atoms
Prex
3
4
5
Hexa-
Hepta-
Octa-
Nona-
Deca-
6
7
8
9
10
1)
Name
the
first
nonmetal
using
the
element’s
full
name.
2)
Name
the
second
nonmetal
element
with
an
“-ide” ending
as
if
it
were
an
anion.
3)
Indicate
the
number
of
atoms
present
(its
subscript)
of
each
element
with
the
prefixes,
“mono-”, “di-“, “tri-“ and so on.
For
example,
the
formula
name
for
CCl
4,
with
one
carbon,
and
four
chlorine
atoms
is
carbon
tetrachloride.
Naming
Covalent
Compounds
© Copyright NewPath Learning. All Rights Reserved. 94-4843
Visit
www.newpathlearning.com
for
Online
Learning
Resources.
Pause
and
Review
Name
the
following
covalent
compounds:
1)
SO3
________________________________________________________________
2)
SO2
________________________________________________________________
3)
NO2
_______________________________________________________________
4)
CBr4
_______________________________________________________________
5)
NO
________________________________________________________________
6)
SiO2
_______________________________________________________________
7)
CO
________________________________________________________________
8)
ICl3
________________________________________________________________
9)
NI3
________________________________________________________________
10)
PBr5
_______________________________________________________________
Write
the
molecular
formulas
for
the
following
covalent
compounds:
1)
Nitrogen
Dioxide
___________________________________________________
2)
Sufur
Hexafluoride
_____________________________________________________
3)
Selenium
Monoxide
____________________________________________________
4)
Phosphorus
Trichloride
_________________________________________________
5)
Carbon
Tetrachloride
____________________________________________________
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