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WorksheetsChemical Bonding
Total questions: 170
Worksheet time: 3hrs 48mins
Valence electrons are transferred
Ionic bonds
Covalent bonds
Conducts electricity well when melted or dissolved
Ionic compounds
Covalent compounds
Poor electrical conductivity
Ionic compounds
Covalent compounds
Always a solid at room temperature
Ionic compounds
Covalent compounds
Can be a solid, liquid, or gas at room temperature
Ionic compounds
Covalent compounds
Generally high melting & boiling points
Ionic compounds
Covalent compounds
Generally low melting and boiling points
Ionic compounds
Covalent compounds
What kind of bond does this show?
Ionic
Covalent
The chemical bond between a non-metal and another non-metal will be a ________ bond.
metal
ionic
covalent
polar
What kind of bonds are shown here?
Covalent
Ionic
What is the molecular geometry of CO2?
linear
trigonal planar
bent
see saw
Which of the following best describes why molecules have certain geometries
The unshared pairs of electrons & the bonding pairs of electrons on the central atom are experiencing repulsive forces
The unshared pairs of electrons & the bonding pairs of electrons on the central atom are experiencing attractive forces
The unshared pairs of electrons & the bonding pairs of electrons on the largest atom are experiencing repulsive forces
The bonding pairs of electrons on the atom with the most unshared pairs are experiencing repulsive forces
What is the molecular geometry of H2O?
linear
bent
trigonal planar
tetrahedral
What is the electron geometry of H2O?
linear
bent
trigonal planar
tetrahedral
What is the molecular geometry of NH3?
trigonal planar
tetrahedral
trigonal pyramidal
trigonal bipyramidal
What is the electron geometry of NH3?
trigonal planar
tetrahedral
trigonal pyramidal
trigonal bipyramidal
What is the molecular geometry of SF6?
trigonal bipyramidal
see saw
octahedral
square pyramidal
What is the molecular geometry of XeF2?
linear
trigonal bipyramidal
octahedral
trigonal planar
What is the molecular geometry of PCl5?
trigonal bipyramidal
see saw
octahedral
square pyramidal
What is the molecular geometry of SO3?
linear
trigonal bipyramidal
octahedral
trigonal planar
What is the molecular geometry of SF2?
linear
bent
trigonal planar
tetrahedral
Which Lewis Dot Model drawing correctly shows an O2 molecule?
Which type of molecular shape is shown by this molecule?
trigonal pyramidal
tetrahedral
bent
trigonal planar
Which of these Lewis structures is incorrect?
Which is the correct molecular structure for carbon dioxide?
In order to minimize repulsion, electron pairs around a central atom arrange themselves as _________as possible from each other.
near
far apart
tight
loose
Refers to the shape of the electron
domains around a central atom. This includes both bonding electrons and
nonbonding electrons (lone pairs).
Electron Domain Geometry
Molecular Geometry
Lewis Structure
Lewis Symbol
Gives the 3D shape of molecule.
Electron Domain Geometry
Molecular Geometry
Lewis Structure
Lewis Symbol
Which has the strongest electron-electron repulsion?
Single bonds
Double bonds
Triple bonds
Lone pairs
How many bonding electron pairs surround N in the compound NO3-?
1
2
3
4
Which of the following is true for ionic bonding & ionic compounds?
They must be made of ions with like charges.
The negative ion must be written first.
Compounds must have an overall charge of zero.
They are made of metals and nonmetals.
The positive ion must be written first.
Which of the following pairs of elements will NOT form an ionic compound?
sodium and fluorine
phosphorous and aluminum
potassium and magnesium
strontium and oxygen
In an ionic bond, the ions are held together because...
the positive nucleus of each ion attracts the other ion's negatively charged electrons
the ions have opposite charges
as the electron moved from one atom to another it pulled the atom along with it
electrons are being shared
Which of the following is NOT a property of ionic compounds?
They conduct electricity when molten
They conduct electricity when in solution
They have high boiling points
They are insoluble in water
Which of the following would be a property of an ionic compound?
Electrically charged.
Made of nonmetals.
Tend to by crystalline solids at room temperature.
Conducts electricity
What is the ability of a substance to be pulled into a wire?
Malleability
Ductility
Conductivity
Solubility
Which of these are considered properties of metals? (choose ALL that apply)
brittleness
low melting point
luster (shininess)
malleability
ductility
Is this molecule polar or non-polar?
Polar
Non-polar
Is this molecule polar or non-polar?
Polar
Non-polar
Is this molecule polar or non-polar?
Non-polar
Polar
Is this molecule polar or non-polar?
Non-polar
Polar
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 above
sp
sp2
sp3
sp4
What is the bond angle for the CH4 molecule?
120°
107°
109.5°
90°
What is the hybridization of the central atom of a bent molecule? (AB2E2)
sp
sp2
sp3
sp3d
The polarity of a bond between two elements can be best determined by
The difference in electronegativity between the elements
The difference in first ionization energy between the elements
The number of electrons shared in the bond
The difference in atomic radius between the elements
What is the molecular geometry for the Lewis Structure pictured above?
Tetrahedral
See-Saw
Trigonal Bipyramidal
Trigonal Pyramidal
What is the molecular geometry for the Lewis Structure pictured above?
Linear
Bent
See-Saw
Square Planar
What is the molecular geometry for the Lewis Structure pictured above?
Trigonal Planar
Tetrahedral
Trigonal Bipyramidal
Octahedral
What is the molecular geometry for the Lewis Structure pictured above?
Trigonal Planar
Trigonal Pyramidal
Tetrahedral
See-Saw
Which of the following best describes why molecules have certain geometries
The unshared pairs of electrons & the bonding pairs of electrons on the central atom are experiencing repulsive forces
The unshared pairs of electrons & the bonding pairs of electrons on the central atom are experiencing attractive forces
The unshared pairs of electrons & the bonding pairs of electrons on the largest atom are experiencing repulsive forces
The bonding pairs of electrons on the atom with the most unshared pairs are experiencing repulsive forces
Which of the following bonds is least polar?
C--O
O--H
S--Cl
Br--Br
I--F
Which of the following atoms cannot exceed the octet rule in a molecule?
N
S
P
I
all atoms must obey the octet rule
Choose the electron dot formula that most accurately describes the bonding in CS2.
Complete the Lewis structure for the molecule shown. Then decide how many sigma and pi bonds there are in the molecule.
6 sigma, 0 pi
12 sigma, 2 pi
12 sigma, 3 pi
13 sigma, 3 pi
16 sigma, 0 pi
In the Lewis structure for ICl2–, how many lone pairs of electrons are around the central iodine atom?
0
1
2
3
4
What does 'polar' mean? Choose all that apply.
Atoms with 4 sets of lone pairs
Molecules with an electronegativity difference under 0.4
Molecules that are more electronegative on one side than another
Molecules with no lone pairs
If a molecule is trigonal pyramidal, how is that different from a tetrahedral?
trigonal pyramidal: 1 lone pair and 3 bonds. tetrahedral: 4 bonds, no lone pairs
trigonal pyramidal: 4 bonds, no lone pairs. tetrahedral: 1 lone pair and 3 bonds
trigonal pyramidal: 2 lone pairs and 2 atoms. tetrahedral: 4 atoms and no lone pairs
Trick question, they aren't different.
Why do lone pairs affect molecular geometry?
They don't affect molecular geometry.
Lone pairs pull the atoms bonded to the central atom towards them
Lone pairs repel other electron domains, such as bonds, away from themselves
Lone pairs are made of protons, which repel the protons in the atoms around the central atom
If a molecule has an electronegativity difference of 0.6, is the bond polar, nonpolar, or ionic?
Polar
Nonpolar
Ionic
None of the above
If there are 2 atoms bonded around the central atom, and an unknown number of lone pairs, what is its molecular geometry?
Linear
Bent
Trigonal Pyramidal
We can't know without knowing if there are lone pairs.
Depending on the symmetry in the molecules, dipole moments may cancel out or add up.
True
False
Is this molecule polar or non-polar?
Non-polar
Polar
Consider the molecule above. Determine the molecular geometry at each of the 2 labeled carbons.
C1 = tetrahedral, C2 = linear
C1 = trigonal planar, C2 = bent
C1 = bent, C2 = trigonal planar
C1 = trigonal planar, C2 = tetrahedral
To determine the molecular geometry of a compound by using VSEPR theory, double bond and triple bonds are considered as
two or three bonding pairs
two bonding pairs
five bonding pairs
one bonding pair
This carbon atom went through ....
sp hybridization
sp2 hybridization
sp3 hybridization
dsp3 hybridization
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 PF5?
sp3
sp3d
sp3d2
sp2
Intermolecular forces for: NH3
Dispersion Force
Dipole dipole
Hydrogen bonding
The weaker the intermolecular forces of a substance the _____________ the boiling point
higher
lower
Which term represents an intermolecular force in a sample of water?
hydrogen bonding
covalent bonding
metallic bonding
ionic bonding
