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WorksheetsChemical Bonding Comprehensive Review
Total questions: 61
Worksheet time: 46mins
If the electronegativity difference between two elements is from 0.0 to 0.4, the bond is:
non-polar
polar
ionic
Classify the unknown substances as ionic, metallic, or covalent.
Soluble: No
Conductivity: No
Melting Point (°C): 850
Structure: Sea of electrons
Ionic
Metallic
Covalent
Classify the unknown substances as ionic, metallic, or covalent.
Soluble: Yes
Conductivity: No
Melting Point (°C): 140
Structure: Non-crystal
Ionic
Metallic
Covalent
Classify the unknown substances as ionic, metallic, or covalent.
Soluble: Yes
Conductivity: Yes
Melting Point (°C): 445
Structure: Crystalline
Ionic
Metallic
Covalent
Rank the following bond from least polar to most polar.
A) C-O B) B-O C) P-Cl D) S-Br
A, B, C, D
D, C, B, A
D, C, A, B
B, A, C, D
CCl4 is a _____ molecule with _____ bonds.
polar, nonpolar
nonpolar, polar
polar, polar
nonpolar, nonpolar
NH3 is a _____ molecule with _____ bonds.
polar, nonpolar
nonpolar, polar
polar, polar
nonpolar, nonpolar
Which arrow points to the partially negative side of the molecule shown in the image?
→
←
Co2 (carbon dioxide) has _____ sigma bonds and _____ pi bonds.
0, 0
1, 1
1, 2
2, 2
Which of the following has the strongest intermolecular forces?
CH4
H2O
Br2
I2
How many valence electrons does SO42- (sulfate ion) possess?
8
16
32
2
What type of bond forms between aluminum and bromine?
Ionic
Metallic
Polar covalent
Non-polar covalent
The chemical bond between which two atoms is most polar (greatest difference in electronegativity)?
H-H
P-Cl
Ge-O
Cl-Cl
Why can water be used to dissolve many different substances?
Water is nonpolar.
Water can be positively or negatively charged.
Water is polar.
Which of the following substances has a low melting point and does not conduct electricity when dissolved in water?
NaCl
C6H12O6
Cu
All of these substances.
An element with low ionization energy and good conductivity of heat and electricity is classified as a _____.
metal
non-metal
Nobel gas
Given the Lewis dot structure for oxygen gas shown in the image, what is the total number of electrons shared between the atoms represented in this structure?
1
2
4
8
The shape of a CO2 (carbon dioxide) molecule shown in the image is _____.
trigonal pyramidal
linear
tetrahedral
trigonal planar
Which substance contains bonds that do not involve the sharing of electrons between atoms?
CO2
Cl2
NH3
KBr
The ball-and-stick molecular model shown is planar, or flat. Each bond angle is 120 degrees. Which molecule has the geometry represented?
BI3
H2O
CH4
Which of the following Lewis dot structures represents methane (CH4)?
Based on its location on the periodic table, which of the following elements is most likely to share three pairs of electrons with other atoms?
Na
N
C
Se
Comparison of Two Bond Types
Bond Type X
makes formula unit, transfers, gives/takes electrons resulting in a noble gas configuration, made with metals and non-metals
Bond Type Y
makes molecules, shares electrons resulting in a noble gas configuration, made of non-metals
X is ionic,
Y is covalent
X is ionic,
Y is metallic
X is metallic,
Y is covalent
X is covalent,
Y is ionic
Which pair of elements would most likely bond to form a covalent compound?
Potassium (K) and Chlorine (Cl)
Magnesium (Mg) and Fluorine (F)
Nitrogen (N) and Oxygen (O)
Cesium (Cs) and Oxygen (O)
Which formula represents a non-polar molecule?
K2S
HCl
CH4
NH3
Some elements exist in nature as pairs called diatomic molecules so _____
both atoms can share electrons equally to be stable.
one atom can transfer electrons to be stable.
both atoms can transfer electrons to be stable.
one atom can share electrons unequally to be unstable.
Which of the following compounds will have the shape shown in the image?
NO2
C2H2
CuF2
CCl4
The image shows the lab set-up where an ionic compound is added to water. This set-up was most likely designed to demonstrate that _____
pure water is a good conductor of electricity.
solid ionic compounds have an electrical charge.
ionic compounds are electrolytes in solution.
the formation of an ionic compound is an exothermic reaction.
Utilizing the table, which one substance shows properties of ionic bonds?
NaCl
Glucose
Copper
Utilizing the table, which of the following substance would form a metallic bond?
Glucose
Copper
Chalk
NaCl
Which of the following is the correct electron dot formula for potassium bromide?
Which compound is a poor conductor of heat and electricity as a solid and has a high melting point?
Li2O
CO2
H2O
N2O
Is the bond ionic if Boron has an electronegativity of 2.0 and bromine, an electronegativity of 2.9?
Yes
No
Unable to determine
What type of bonding is associated with compounds that have the following properties?
Ionic
Metallic
Covalent
Which part of the atom is involved in chemical bonding?
The protons.
The nucleus.
The neutrons.
The valence electrons.
When a metal and a nonmetal combine, they form what kind of chemical bond?
Ionic
Metallic
Covalent
Transient
For polar covalent bonding between atoms, valence electrons are _____
shared unequally.
shared equally.
transferred unequally.
transferred equally.
Which of these correctly identifies a Sulfur ion?
S+2
S-2
S-3
S+3
What is the correct Lewis dot structure for the fluorine ion?
Carbon dioxide (CO2) is a compound. What type of bonding is occurring between the two non-metals in the compound?
Covalent
Ionic
Metallic
It become negatively charged.
It become positively charged.
No change occurs.
If an atom loses two electrons, what charge will it have?
Which of the following is not matched up with the correct molecular shape?
linear – BeH2
tetrahedral – NH3
bent – H2O
triangular planar – BH3
Which of the following does not describe any of the following molecules?
CCl4 CO2 PCl3 PCl5 SF6
Octahedral
Linear
Triangular Planar
Tetrahedral
The image shows a light bulb connected to a battery. If a compound is dissolved in the water to form a solution, all of the following substances will complete a circuit allowing the bulb to light except _____.
potassium chloride, PCl
carbon dioxide, CO2
calcium bromide, CaBr2
sodium nitrate, Na(NO2)
Which of the following has the weakest intermolecular forces?
K2S, solid
HCl, liquid
CH4, gas
NH3, liquid
According to the table shown, which of the following correctly identifies the bond types?
X is ionic
Y is covalent
X is metallic
Y is covalent
X is covalent
Y is ionic
X is ionic
Y is metallic
The correct structural formula for C2H4 is:
Why are valence electrons shared, forming covalent bonds, between two atoms?
The polarity difference between atoms is large enough to transfer an electron.
The electronegativity difference between atoms is not large enough to transfer an electron.
The electronegativity difference between atoms is large enough to transfer an electron.
The polarity difference between atoms is not large enough to transfer an electron.
The shape of a PCl5 molecule in the image is _____.
trigonal bipyramidal
tetrahedral
trigonal planar
trigonal pyramidal
bent
The image shown is Lewis structure of a molecule. The X represents which element?
Oxygen
Sulfur
Nitrogen
Flourine
The image shows a compound containing hydrogen (H) and an unknown element Z. To which group on the periodic table does element Z belong?
14
16
13
15
Corrin determines the melting points and boiling points of three different substances and lists them in the table shown. Using the table, rank the substances from strongest intermolecular forces to weakest intermolecular forces.
B, A, C
A, B, C
C, A, B
C, B, A
In the table shown, which state of matter is seen in the formation of ionic bonds?
Gas
Liquid
Solid
The theory that describes metallic bonding as a sea of mobile electrons around relatively stationary cations was developed as a result of comparing many physical properties of metals to those of other materials. What is one property of metals that supports the theory?
Thermal insulation due to the separation of positive and negative charges.
Malleability due to the mobility of electrons surrounding the cations.
Generally low melting point due to the attractions between electrons and cations.
Brittleness due to the repulsions between electrons.
Which of the following compounds is an electrolyte when added to water?
CO
KCl
NH3
N2O
Metallic compounds usually have high boiling points because the bonds _____.
have stronger attractive forces.
are weaker.
create a more rigid structure.
vaporize more easily.
Which of the following would have the strongest ionic bond?
NCl3
Cl2O
MgCl2
What type of bonding is associated with compounds that have the characteristics shown?
Ionic
Metallic
Covalent
No bonding occurs
Which of the following is the correct molecular shape of CCl4 ?
trigonal pyramidal
tetrahedral
trigonal planar
bent
The following properties were determined about a compound: composed of two nonmetals, liquid at room temperature, did not conduct a current dissolved in water. The compound is _____.
ionic
metallic
covalent
