AP Chemistry
Chapter 7 worksheet 1
Name __________________
1. Using electronegativity values (table p. 246) , determine the type of each compound as
being ionic, polar covalent, or nonpolar covalent.
CF4
NaI
NBr3
CuS
MgBr2
2. Based on looking at the periodic table, determine the type of each compound as being
ionic or covalent.
NI3
LiBr
BaO
CS
Fe2O3
3. List the seven diatomic elements:
4. Draw the following ionic compounds using ionic bonding pictures.
a) FeCl3
b) MgO
c) Ca3P2
d) AlBr3
5. Explain the general relationship between bond length and bond energy.
6. Based on the following bond lengths, order the following according to increasing bond
energy:
Group 1
a) H - H 74 picometers
Group 2
a) C - O 143 pm
b) Cl - Cl 198 pm
b) C - Br 193 pm
c) I-I 266 pm
c) C - H 110 pm
d) Br-Br 228 pm
d) C - N 147 pm
7. Draw Lewis structures for the following compounds/ polyatomic ions:
HBr
OCl2
CN -1
H3PO3
ammonium ion
hydroxide ion
SO3
-2
SeO4-2
PBr3
CO
C2H6
HNO2
Cl2
CHCl3
acetate
acetic acid
SiO2
ClO3-1
AP Chemistry
Chapter 7 worksheet # 2
Name ________________
1. Draw resonance structures for the following ions:
HCOO-1
NO3-1
NO2-1
2. Assign formal charges to all of the atoms in the following ions/molecules:
ClO4-1
ClO3-1
ClO2-1
ClO-1
SO2
SO3
SO3-2
SO4-2
3. Draw the following molecules/ions that violate the octet rule:
I3-1
AsCl5
PF6-1
XeF2
XeF4
IF4-1
BeF2
BF3
SCl4
Major Naming/Formula Writing Practice – acids, bases, salts, and molecular compounds – some
compounds can be named multiple ways
hydrogen cyanide
hydrogen peroxide
acetic acid
tin (II) permanganate
sodium periodate
aluminum thiocyanate
sodium superoxide
silver carbonate
hydroselenic acid
carbon monoxide
tin (IV)sulfate
stannous chromate
sulfur dioxide
silver nitrite
selenic acid
carbon tetrachloride
ferrous carbonate
plumbic sulfide
stannic dichromate
hydrogen selenite
iron (II)carbonate
lead (IV) sulfide
tin (IV) dichromate
ammonium acetate
hydrogen oxalate
lead (II) sulfide
chromium (III) oxide
calcium hydroxide
carbon (IV) sulfide
selenium dioxide
ferrous sulfite
plumbous oxide
FeSO3
PbO
SnCr2O7
H3AsO4(aq)
CO2
Mn(SCN)2
SO3
HgHCO3
Ag2HPO4
CuHCrO4
HClO2
H2SeO4
(NH4)2C2O4
PF5
Al(BrO4)3
Sn(CrO4)2
H3AsO3
H2Se
HgHSO3
SeO3
HCl
PbF2
Mn(HPO3)2
HFO
HCl(aq)
HBrO3
Cu(HCr2O7)2
N2O