* If
there
is
bond
ionic
an
,
the molecule
dissociates
Ionic
↳
bond
Group
1
or
2
metal
bound
to
metal
non
KOH
¥
K+
Period
octet
3
and
above
dissociates
OH
above
8
e-
-
can
expand
their
a
Formal
charge
FC=[valence
=[Group #]
Resonance
e-
-
]
:
-
[NEon-dr.ge ] 'z[Shareef ]
[dots]
-
-
[ lines]
structure
* resonant
stabilizes
→
Don't
or
make
remove
lore
pairs
Introduction to Organic Chemistry
A) Draw the Lewis structures for the following compounds.
1) BH3 6
2) H2SO4
=
32
=
:O :
H
B
-
H
-
µ
É
-
.
:D
I
H
=
4) NaBH4
16
H
a-
C-i.ro
Nat
.
#
5) KMnO4
k+[÷iÉ:p
032
µn,s
-
,
my:3:-.
B
-
H
'
FEE
H
transition so
be expanded
can
2;
*
A ,
-
←
k+=
:
Min &
-
:p
.
:]
-
+,
it
-
-
"" "
]
7
drawn
Al =3 e-
-7
Valen
-
0=0
It
}
bond
+
le
=
le
-
,
the
of
-
charge
an
compound the
is
put
,
the
lewis
anion
is
cation
the side
-
Chard
Mrs
dot of
lewis
ionic
¥
octet
'
]
,
-
6) LiAlH4
charge !
:& :
p
Reduce formal
-
(
ith
on
an
extra
electron
)
B) In the structures shown, indicate the formal charge of the labeled atoms.
H
:[
-
4-2-2=9
c
6-3-4=-1
(
=
6- 1-6=-1
,
6-2-4=0
it
C
"
u
-
4-
-
C
-
C
"
'
H
'
O
-
3-2=-1
-¥%%%%F(
formal
For
charge
T
structure there
,
some
be
hidden
Ex
as
?⃝
(
-
8
:
µ
1
C-
:
1
3
3) CH3CN
H
-
-
-
ÉH
E
-
c-☐
could
bonds
c-÷
.
C) Convert the following condensed structures to line-angle notation.
"÷÷÷÷÷aa /a ÷i÷÷i÷o
1) CH3CH2CH(CH3)2
structural
*
÷:c
:
.
,
H
Line
when
:
Cl
Cats)
Br
WX
anse :
ever
menses
2) CH3CHClCH2CHBrCH3
Str
,
line
a
there
breaks
a
is
dot
Each
,
ends,
carbon
or
.
3)
represents
✓
•
A
Carbon
•/•¥•
.
e
.
F3C(CH2)2O(CH2)2CBr3
An 4th ' ng
Everything
thats
is
else
C.
not
It
has to
written
be
.
hydrogen -002 Attach
Structure
e÷÷:÷:÷÷÷÷÷÷
ne
Line
Anse
.
:
If.am#0t.thqEfs
,
Br
4)
.it
-q.F→f•g§.£
-9.979.17
""
on
s
.
no
soca
-on.
.
•
•
.E~f÷
z
O
n
a
-
s
-
O
-4
f- (
good
.
.
D) Convert the following structures from line-angle notation to condensed structure.
DO
(CHD3CCH2dH3
GHz
}LH0LH¢Hs)z
CH3CH2.CO/0H )
f
CHzCHgC00H✓
would
mean
O'
tgroup
On
the
oxygen
before
o
-
( H
CH
11
"
CH
,
-
CH
CHSCHLNHCHZ)CHzLHBrLH3
E) Draw all of the resonance contributors:
→ Hsc
←
-
minor
Major
µ
¥
<→¥÷
*
+,
-
*
÷
ÉÉ
cI
-
É
:-& :
"
-
H
E-
-
↳
iz
I :-c
-
H
.
,+
"
'
D
H
TO
①g¥¥÷
µ
•
,
•
'
<→
•
'
.
.
.
Chansons
orientation
.
-
.