Font size
Worksheets5 Honors: Bonding Unit Exam Review
Total questions: 85
Worksheet time: 1hrs 23mins
How many electrons are involved in a double bond?
One pair of electrons
Two pairs of electrons
6 electrons
8 electrons
Which of these is not a covalent molecule?
MgO
CO2
HCl
CH4
Why is this diagram of bonding in carbon dioxide (CO2) incorrect?
There should be 2 carbon atoms and one oxygen
2 more electrons should be added to the carbon atom
there should be a double bond not a single bond
2 more electrons should be added to the oxygen atoms
What is the correct formula for Sodium Chloride?
SCl
NaCl
SC
NaCl2
Name this ionic compound: Al2O3
Dialuminum oxide
Aluminum oxygen
Oxygen Aluminide
Aluminum oxide
Write the chemical formula for K and Br (potassium bromide).
KBr
K2Br
KBr3
KBr2
Write the chemical formula for Na and S (sodium sulfide).
NaS
S2S2
Na2S
NaS2
Using the model for the formation of Scandium Fluoride (an ionic compound), write the chemical formula.
Sc3F
Sc3F3
Sc+3F-1
ScF3
Magnesium Hydroxide is an ionic compound made up from Mg2+ and OH- ions. Which is its correct formula?
MgOH
MgOH2
Mg(OH)2
MgO
What is the correct formula for aluminum hydroxide?
AlOH
Al2(OH)3
Al3(OH)2
Al(OH)3
Al(OH)2
Classify the following molecule.
polar
nonpolar
Why is the molecule nonpolar?
There are nonbonding pairs on the central atom.
There are different types of elements bonded to the central atom.
There are no nonbonding pairs on the central atom and all of the atoms bonded to the central atom are the same.
Classify the following molecule.
polar
nonpolar
Why is the molecule polar?
There are nonbonding pairs on the central atom.
There are different types of elements bonded to the central atom.
There are no nonbonding pairs on the central atom and all of the atoms bonded to the central atom are the same.
Why is the molecule polar?
There is a nonbonding pair on the central atom.
There are different types of elements bonded to the central atom.
There are no nonbonding pairs on the central atom and all of the atoms bonded to the central atom are the same.
Why is the molecule polar?
There are nonbonding pairs on the central atom.
There are different types of elements bonded to the central atom.
There are no nonbonding pairs on the central atom and all of the atoms bonded to the central atom are the same.
Why is the molecule nonpolar?
There are nonbonding pairs on the central atom.
There are different types of elements bonded to the central atom.
There are no nonbonding pairs on the central atom and all of the atoms bonded to the central atom are the same.
Polarity of a molecule is determined by
shape and charge
symmetry/asymmetry of molecule and difference in EN value
difference in EN value and size
difference in EN value and charges
CO2 has polar bonds but is a NON POLAR molecule. Why?
it has an asymmetrical shape
the molecule is symmetrical with no lone pairs of electrons on the central atom, so it is linear, not bent
there is net dipole moment between C and O atoms in molecule
bond polarity does not exist between C+ and O- atoms
Does the following reference Polar, Nonpolar, or both:
"electronegativity values are the same"?
Polar
Nonpolar
Both
Including the drawn structure, how many total resonance structures for NO3- ion can be drawn?
1
2
3
4
Considering formal charge as well as the octet rule, what is the best electron dot structure for the polyatomic ion NCO-? (Note: three of these structures are correct but one is "best")
1
2
3
4
5
What is the hybridization of a linear molecule?
sp
sp2
sp3
sp3d
Which of the following images represents a Trigonal Planar molecular geometry?
What is the hybridization of this molecule shown
sp
sp2
sp3
sp4
What is the hybridization of the central atom of a bent molecule? (AB2E2) (AB2 represents bonding electrons on the central atom, E2 represents the number of nonbonding electron pairs, so 2 electron pairs)
sp
sp2
sp3
sp3d
Determine the hybridization of the given structure.
sp
sp2
sp3
sp3d
Carbon atom hybridization is
How many pi bonds are in the following compound?
0
1
2
3
5
How many sigma bonds are in the following molecule?
0
1
2
3
5
List the strongest to weakest IMFs.
Hydrogen Bond, London Dispersion, Dipole-dipole
London Dispersion, Dipole-dipole,
Hydrogen Bond
Hydrogen Bond, Dipole-dipole, London Dispersion
Dipole-dipole, Hydrogen Bond, London Dispersion
A strong IMF increases
boiling point
solubility
flammability
malleability
A weak IMF will result in a
high melting point
high viscosity
high surface tension
low surface tension
A hydrogen bond is a covalent bond. True or False
True
False, because it is ionic
False, because it involves the transfer of electrons
False, it is an intermolecular force
Predict the substance with the highest melting point (based on IMF)
CO2
AlCl3
C2H6
CH3OH
Predict the IMF
London Dispersion
Dipole-dipole
Hydrogen Bond
Predict the IMF
London Dispersion
Dipole-dipole
Hydrogen Bond
What is the molecular geometry of BF3?
bent
trigonal planar
tetrahedral
trigonal pyramidal
Which of the following applies to IF41+
incomplete octet
follows the octet rules
free radical
expanded octet
What is the picture showing?
All of the resonance structures for carbonate.
The formal charge on each atom in carbonate.
The electronegativity for carbonate.
The ionization energy for carbonate.
What is the formal charge on the phosphorus atom in this Lewis dot structure?
0
-1
+1
-3
What is the molecular geometry of PCl5
trigonal bipyramidal
seesaw
square pyramidal
square planar
What is the hybridization on the carbon atom in CO2?
sp
sp2
sp3
sp3d
sp3d2
How many sigma bonds are in a single, double, and triple bond respectfully?
1, 2, 3
0, 1, 2
1, 1, 2
1, 1, 1
The Lewis structure of the CO32- ion is
The ion NO- has _____ valence electrons.
10
12
14
15
16
In the Lewis structure of ClF, the formal charge on Cl is _______ and the formal charge on F is _______.
0,0
-1, -1
0, -1
-1, 0
+1, -1
In HCN (Carbon is usually the central atom) what kind of bond is between the C and N
Single
Double
Triple
What is the formula for formal charge?
Valence electrons minus bonds and nonbonding electrons
It is based off of the group on the periodic table
It is the number of electrons on the atom - electrons on other atoms
Which of the following elements can have an expanded octet?
P
N
B
F
Which of the following elements can have an incomplete octet?
B
P
N
O
How many bonds can hydrogen make?
Only 1
1 or 2 Bonds
1 bond with 6 electrons on it
It never makes bonds
What does the acronym BARF stand for
Bend Absorb Release Formal
Bond Azimuthal Rebond Frigid
Break Absorb Release Form
Break Release Absorb Form
SNAP
Sp bonds Never break Always Prevail
System Nonzero Atypical Person
Snap, No Advanced People (here)
Symmetrical Nonpolar Asymmetrical Polar
