1|Page
MSU CEM 141 FINAL EXAM AND STUDY GUIDE NEWEST
2026 TEST BANK| MSU CEM 141 FINAL EXAM PREP
WITH COMPLETE 450 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+
Thomson's cathode ray tube experiment proved false what part of
Dalton's atomic theory?
a. All atoms are indivisible and indestructible.
b. All atoms of a given element are identical.
c. All matter is made of atoms.
d. Compounds are formed from the combination of two or more
elements.
e. Chemical reactions are rearrangements of atoms. ......ANSWER......a.
all atoms are indivisible and indestructible.
How would the strength of the electrostatic force change if the distance
between two charged objects decreased?
a. The electrostatic force would become stronger.
b. The electrostatic force would become weaker.
c. The electrostatic force would become stronger or weaker depending
on whether the force is attractive or repulsive.
d. It is impossible to say from the information given. ......ANSWER......a.
the electrostatic force would become stronger
,2|Page
Consider the following statement: "A nitrogen molecule is made of the
same type of atoms." Is this statement true or false and why?
I. True
II. False
Because:
III. An element is made of one type of atom. Nitrogen is an element that
exists as diatomic molecules.
IV. Nitrogen is a compound that exists as diatomic molecules.
Compounds are made of different types of atoms.
V. Nitrogen is an element, and therefore must exist as separate atoms
not molecules.
a. I and III c. I and V e. II and IV
b. I and IV
d. II and III f. II and V ......ANSWER......a. I and III
true, because an element is made of one type of atom. Nitrogen is an
element that exists as diatomic molecules
Why does the potential energy increase as two xenon atoms move
extremely close together?
a. Because the kinetic energy decreases as the atoms slow down.
,3|Page
b. Because the electrostatic attractive force, from the instantaneous
dipoles, is dominant.
c. Because the repulsive force, between the overlapping electron
clouds, is dominant.
d. Because there is more potential energy than kinetic energy when the
atoms are close together. ......ANSWER......c. because the repulsive
force, between the overlapping electron clouds, is dominant
Which statement best describes the forces that exist between helium
atoms in the solid state?
a. The electron cloud on one helium atom is attracted to the electron
cloud on the other atom.
b. The nucleus of one helium atom is repelled by the nucleus of the
neighboring atom.
c. The helium atoms share electrons, forming a bond.
d. The partial positive end of one atom's instantaneous dipole attracts
the partial negative end of the neighboring atom's induced dipole.
e. Both atoms have mass, so they are attracted to each other by
gravitational forces. ......ANSWER......d. The partial positive end of one
atom's instantaneous dipole attracts the partial negative end of the
neighboring atom's induced dipole.
When a covalent bond is formed between two nitrogen atoms:
I. Energy is absorbed
II. Energy is released
, 4|Page
III. A molecule is formed
IV. The nitrogen changes from the gaseous to liquid state.
......ANSWER......II and III: energy is released and a molecule is formed
The London dispersion force between two neon atoms compared to the
London dispersion force between two argon atoms where both systems
are the most stable is:
I. the same
II. stronger
III. weaker
Because:
IV. They are both noble gases.
V. Neon has a smaller electron cloud, therefore there will be a smaller
separation of charge resulting in a weaker force.
VI. Neon has a smaller electron cloud, therefore there will be a larger
separation of charge resulting in a stronger force. ......ANSWER......III
and V: weaker, because neon has a smaller electron cloud, therefore
there will be a smaller separation of charge resulting in a weaker force
Is the following statement true or false?
When chlorine freezes, London dispersion forces are formed.
This statement is
MSU CEM 141 FINAL EXAM AND STUDY GUIDE NEWEST
2026 TEST BANK| MSU CEM 141 FINAL EXAM PREP
WITH COMPLETE 450 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+
Thomson's cathode ray tube experiment proved false what part of
Dalton's atomic theory?
a. All atoms are indivisible and indestructible.
b. All atoms of a given element are identical.
c. All matter is made of atoms.
d. Compounds are formed from the combination of two or more
elements.
e. Chemical reactions are rearrangements of atoms. ......ANSWER......a.
all atoms are indivisible and indestructible.
How would the strength of the electrostatic force change if the distance
between two charged objects decreased?
a. The electrostatic force would become stronger.
b. The electrostatic force would become weaker.
c. The electrostatic force would become stronger or weaker depending
on whether the force is attractive or repulsive.
d. It is impossible to say from the information given. ......ANSWER......a.
the electrostatic force would become stronger
,2|Page
Consider the following statement: "A nitrogen molecule is made of the
same type of atoms." Is this statement true or false and why?
I. True
II. False
Because:
III. An element is made of one type of atom. Nitrogen is an element that
exists as diatomic molecules.
IV. Nitrogen is a compound that exists as diatomic molecules.
Compounds are made of different types of atoms.
V. Nitrogen is an element, and therefore must exist as separate atoms
not molecules.
a. I and III c. I and V e. II and IV
b. I and IV
d. II and III f. II and V ......ANSWER......a. I and III
true, because an element is made of one type of atom. Nitrogen is an
element that exists as diatomic molecules
Why does the potential energy increase as two xenon atoms move
extremely close together?
a. Because the kinetic energy decreases as the atoms slow down.
,3|Page
b. Because the electrostatic attractive force, from the instantaneous
dipoles, is dominant.
c. Because the repulsive force, between the overlapping electron
clouds, is dominant.
d. Because there is more potential energy than kinetic energy when the
atoms are close together. ......ANSWER......c. because the repulsive
force, between the overlapping electron clouds, is dominant
Which statement best describes the forces that exist between helium
atoms in the solid state?
a. The electron cloud on one helium atom is attracted to the electron
cloud on the other atom.
b. The nucleus of one helium atom is repelled by the nucleus of the
neighboring atom.
c. The helium atoms share electrons, forming a bond.
d. The partial positive end of one atom's instantaneous dipole attracts
the partial negative end of the neighboring atom's induced dipole.
e. Both atoms have mass, so they are attracted to each other by
gravitational forces. ......ANSWER......d. The partial positive end of one
atom's instantaneous dipole attracts the partial negative end of the
neighboring atom's induced dipole.
When a covalent bond is formed between two nitrogen atoms:
I. Energy is absorbed
II. Energy is released
, 4|Page
III. A molecule is formed
IV. The nitrogen changes from the gaseous to liquid state.
......ANSWER......II and III: energy is released and a molecule is formed
The London dispersion force between two neon atoms compared to the
London dispersion force between two argon atoms where both systems
are the most stable is:
I. the same
II. stronger
III. weaker
Because:
IV. They are both noble gases.
V. Neon has a smaller electron cloud, therefore there will be a smaller
separation of charge resulting in a weaker force.
VI. Neon has a smaller electron cloud, therefore there will be a larger
separation of charge resulting in a stronger force. ......ANSWER......III
and V: weaker, because neon has a smaller electron cloud, therefore
there will be a smaller separation of charge resulting in a weaker force
Is the following statement true or false?
When chlorine freezes, London dispersion forces are formed.
This statement is
