UNIVERSITY OF NEW ENGLAND CHEM 1011 MIDTERM EXAM QUESTIONS & ANSWERS 2026-… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
University of New England
CHEM 1011 Midterm Exam
Questions & Answers 2026-2027
| Latest Verified Exam
(Rationales)
Verified Answers Exam Ready With Rationales
57 QUESTIONS
DOCUMENT OVERVIEW
This document contains 57 verified questions with correct answers and detailed rationales, focusing on
foundational concepts in chemistry. It is suitable for effective study and review, ensuring a thorough
understanding of key principles. Students can utilize this resource for exam preparation, course
reinforcement, and to enhance their knowledge base in the subject area.
CONTENTS
01 Intermolecular Forces Q1–Q13
02 Solutions and Properties Q14–Q28
03 Colligative Properties Q29–Q44
04 Suspensions and Colloids Q45–Q48
05 Reaction Kinetics Q49–Q53
Page 1
, 06 Acids and Bases Q54–Q57
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 57
Intermolecular forces
CORRECT ANSWER
attractive forces that exist between molecules
RATIONALE
Attractive forces between molecules, known as intermolecular forces, play a critical role in determining the physical properties of
substances, such as boiling and melting points. These forces include hydrogen bonding, dipole-dipole interactions, and London
dispersion forces, influencing molecular behavior in different states of matter.
Q2 QUESTION 2 OF 57
particles in a solid
CORRECT ANSWER
tightly packed together, arranged in a regular pattern and generally DO NOT move in relation to one another
RATIONALE
Particles in a solid exhibit strong intermolecular forces, resulting in a fixed structure where they are closely packed in a regular
arrangement and have minimal kinetic energy, preventing movement relative to each other. This arrangement contributes to the
rigidity and defined shape characteristic of solid materials.
Q3 QUESTION 3 OF 57
particles in a liquid
CORRECT ANSWER
close together with no regular arrangement; can move past each other but remain in essentially constant contact
RATIONALE
Liquid particles exhibit a close packing that allows them to maintain intermolecular attraction while possessing sufficient kinetic
energy to slide past one another, resulting in a defined volume but no fixed shape. This unique arrangement demonstrates the
properties of liquids in terms of fluidity and incompressibility.
Page 2
, Q4 QUESTION 4 OF 57
particles in a gas
CORRECT ANSWER
are far apart with no regular arraneement; they move independently of one anothre except when they collide
RATIONALE
Gas particles exhibit minimal intermolecular forces, allowing them to maintain significant distances and move freely in all directions;
this independence is characterized by high kinetic energy, leading to collisions that do not affect their arrangement. Such behavior
exemplifies the principles of kinetic molecular theory, which describes the motion and spacing of particles in different states of
matter.
Q5 QUESTION 5 OF 57
the phase which a substance exists depends on what?
CORRECT ANSWER
the intermolecular forces (IMFs) and the kinetic energies of its molecules (kinetic energies is the energy rquired to overcome
the attractive forces and thus increase the distance between particles)
RATIONALE
The phase of a substance is determined by the balance between intermolecular forces and the kinetic energy of its molecules; strong
IMFs can keep molecules close together in a solid or liquid, while higher kinetic energy allows them to overcome these forces and
enter a gaseous state. This interplay defines the state of matter based on temperature and pressure conditions.
Q6 QUESTION 6 OF 57
viscosity
CORRECT ANSWER
a measure of a fluid's resistance to flow; can measure by the rate at which a metal ball falls through a liquid or the rate at which
a liquid flows through a narrow tube
water & gas that flow freely =LOW viscosity
syrup & honey that don't flow freely = HIGH viscosity
** the more structurally complex the substance the molecules in a liquid, the STRONGER the IMFs between them = more
difficult to move past each other =GREATER VISCOSITY
RATIONALE
Viscosity quantifies a fluid's internal resistance to flow, influenced by intermolecular forces; higher structural complexity and
stronger intermolecular forces result in increased viscosity, making fluids like syrup flow less readily compared to water. This
concept is fundamental in understanding fluid dynamics and the behavior of various substances under different conditions.
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
University of New England
CHEM 1011 Midterm Exam
Questions & Answers 2026-2027
| Latest Verified Exam
(Rationales)
Verified Answers Exam Ready With Rationales
57 QUESTIONS
DOCUMENT OVERVIEW
This document contains 57 verified questions with correct answers and detailed rationales, focusing on
foundational concepts in chemistry. It is suitable for effective study and review, ensuring a thorough
understanding of key principles. Students can utilize this resource for exam preparation, course
reinforcement, and to enhance their knowledge base in the subject area.
CONTENTS
01 Intermolecular Forces Q1–Q13
02 Solutions and Properties Q14–Q28
03 Colligative Properties Q29–Q44
04 Suspensions and Colloids Q45–Q48
05 Reaction Kinetics Q49–Q53
Page 1
, 06 Acids and Bases Q54–Q57
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 57
Intermolecular forces
CORRECT ANSWER
attractive forces that exist between molecules
RATIONALE
Attractive forces between molecules, known as intermolecular forces, play a critical role in determining the physical properties of
substances, such as boiling and melting points. These forces include hydrogen bonding, dipole-dipole interactions, and London
dispersion forces, influencing molecular behavior in different states of matter.
Q2 QUESTION 2 OF 57
particles in a solid
CORRECT ANSWER
tightly packed together, arranged in a regular pattern and generally DO NOT move in relation to one another
RATIONALE
Particles in a solid exhibit strong intermolecular forces, resulting in a fixed structure where they are closely packed in a regular
arrangement and have minimal kinetic energy, preventing movement relative to each other. This arrangement contributes to the
rigidity and defined shape characteristic of solid materials.
Q3 QUESTION 3 OF 57
particles in a liquid
CORRECT ANSWER
close together with no regular arrangement; can move past each other but remain in essentially constant contact
RATIONALE
Liquid particles exhibit a close packing that allows them to maintain intermolecular attraction while possessing sufficient kinetic
energy to slide past one another, resulting in a defined volume but no fixed shape. This unique arrangement demonstrates the
properties of liquids in terms of fluidity and incompressibility.
Page 2
, Q4 QUESTION 4 OF 57
particles in a gas
CORRECT ANSWER
are far apart with no regular arraneement; they move independently of one anothre except when they collide
RATIONALE
Gas particles exhibit minimal intermolecular forces, allowing them to maintain significant distances and move freely in all directions;
this independence is characterized by high kinetic energy, leading to collisions that do not affect their arrangement. Such behavior
exemplifies the principles of kinetic molecular theory, which describes the motion and spacing of particles in different states of
matter.
Q5 QUESTION 5 OF 57
the phase which a substance exists depends on what?
CORRECT ANSWER
the intermolecular forces (IMFs) and the kinetic energies of its molecules (kinetic energies is the energy rquired to overcome
the attractive forces and thus increase the distance between particles)
RATIONALE
The phase of a substance is determined by the balance between intermolecular forces and the kinetic energy of its molecules; strong
IMFs can keep molecules close together in a solid or liquid, while higher kinetic energy allows them to overcome these forces and
enter a gaseous state. This interplay defines the state of matter based on temperature and pressure conditions.
Q6 QUESTION 6 OF 57
viscosity
CORRECT ANSWER
a measure of a fluid's resistance to flow; can measure by the rate at which a metal ball falls through a liquid or the rate at which
a liquid flows through a narrow tube
water & gas that flow freely =LOW viscosity
syrup & honey that don't flow freely = HIGH viscosity
** the more structurally complex the substance the molecules in a liquid, the STRONGER the IMFs between them = more
difficult to move past each other =GREATER VISCOSITY
RATIONALE
Viscosity quantifies a fluid's internal resistance to flow, influenced by intermolecular forces; higher structural complexity and
stronger intermolecular forces result in increased viscosity, making fluids like syrup flow less readily compared to water. This
concept is fundamental in understanding fluid dynamics and the behavior of various substances under different conditions.
Page 3
