Name
PCB 2H
Covalent Compounds Worksheet
kS'1_
,
Element
H and
Lewis Dot Structure
a
"'0"
lA/
Chemical Formula
,
H
Name
~~O
VJoJ-~y-
GKl{
fY) e-titJ~{V1 e.
"-c
7
C and H
~-,Q.;-H
\
:r
k
~
Si and CI
\ (
: Ct.....
(...
-
, A
co
!
, e
.
i --C(., :
S~CALf
'5(' II'cc'V\
+e+<aok~~
:~l~
Hand F
'
-
\-t-F:
'-it=::
"'4
~b~~~
"". {:'luo<'"Irk.
VI
-
Cand
a
,
,'0 :::c.,:: 0",
.
Nand N
<?
o
N-;::
,P
-
N:
CO'2......
N'L.-
GA~la8'v1
~~o(\.('d~
lV~we:~
3. Using the Electronegativity of the elements above, determine the bond polarity for
each.
non-polar<O.4; 0.4-1.7 polar; 1.7<ionic
Elements
Electronegativity
Difference
C and H
\ ~'-\
0,,'--\
Si and CI
\11-
Hand 0
9oicv("
1
nd'Y\ -o»
,
Cand 0
\Cl (
oolG\. ("
,?oLo...'I
\I~
'\
Hand F
Bond polarity
C()'J~
Vl+
oblav
, '(
Part 2. Name the following covalent compounds:
d",,-,--,-e~__
1)
N203------""J)"----'-'--'-{\--l.clLd--'--'-=-L.lo....J0""51drQ+'Y1-\---_±L!'l---'~'--'-("'--) '&""-,-,,i
2)
co
Ca~(~b~trA~~Da~~~DX~·\~·d~~~
_
3)
NH3_~_'
--1...L..l..--J...l.l-+.~~~----"r-L~~74-=-'-Vt-,----+r-.\
<note: the way NH3 is written, while commonly
accepted,
~
does not follow the rule of wri mg the most metallic element first in the chemical
4)
PBr3
P'vlosp noru 5 ±(\ \o(7)yy\\oLe
5)
B2F6
1)~bO( 0Y1
6)
P205
'b l p'rlos(0hltfv ~ ~vr~oj\
7)
C,H,
8)
Si02
9)
B,H,
Diko-rOVl ±efu Vt'jdn'de
10)
P4
'Phc)sphMUS
<remember:
1)iQ<tJOV\
d n'ck )
h€..K Ci
*l
vo,n' ate
+-em
i' \ j'COY\l
we don't call 02 "dioxide" ...we just call it oxygen!
()
n' -e
(
e,
\oL-e
E+~yleVle)
formula
Part 3. Write the formulas of the following covalent compounds:
,
1)
nitrogen trichloride
I\JCA3
2)
dinitrogen trioxide
NZ03
3)
phosphorus pentafluoride
PFS
8)
GH~
sulfur dibromide
55<2diboron tetrahydride
B2HL\
OF.2
oxygen difluoride
c..S
carbon disulfide
9)
nitrogen monoxide
NO
10)
dinitrogen trioxide
N203
11)
nitrogen
4)
5)
6)
7)
12)
methane
2
»:
N2.,
phosphorus trifluoride
13)
nitrogen tribromide
14)
sulfur hexachloride
PF3
NBr3
sci,