CHEM 101 EXAM TEST BANK NEWEST 2026 |
CHEM 101 GENERAL CHEMISTRY | COMPLETE
STUDY GUIDE | REAL EXAM Q&A + DETAILED
RATIONALES | 2026 EDITION
Question
What is the study of matter and the changes it undergoes?
A) Biology
B) Chemistry
C) Physics
D) Engineering
Expert Rationale: Chemistry is the study of matter and the changes it undergoes. Physics
is chemistry in motion; biology is chemistry in a cell; engineering is chemistry in
application. Understanding chemistry is fundamental to nursing because it underpins
pharmacology, fluid and electrolyte balance, and metabolic processes.
Question
A tentative explanation for a set of observations is called:
A) Theory
B) Law
C) Hypothesis
D) Scientific method
Expert Rationale: A hypothesis is a tentative explanation for a set of observations. A theory
is a well-substantiated explanation developed over time; a law is a mathematical
relationship consistently found to be true. A hypothesis is testable and forms the basis for
experiments. It is not a wild guess.
Question
A general observation that does not involve numbers is classified as:
A) Quantitative data
B) Qualitative data
, C) Intensive property
D) Extensive property
Expert Rationale: Qualitative data consists of general observations that do not involve
numerical measurements. Quantitative data comprises numbers obtained by
measurement. Intensive and extensive properties refer to physical properties of matter, not
data types. Qualitative data is often descriptive (color, texture, odor).
Question
Which of the following is one of the four basic rules of good science?
A) Results should be reproducible by others
B) Conclusions should be based on opinion
C) Only one scientist should review results
D) Credit is not important
Expert Rationale: One of the four basic rules of good science is that results should be
reproducible by others. Other rules include: detailed research should be reviewable,
conclusions should be reasonable and unbiased, and proper credit should be given.
Reproducibility is essential for scientific validity.
Question
Matter is defined as anything that:
A) Has energy
B) Occupies volume and has mass
C) Can be seen
D) Can be measured with a ruler
Expert Rationale: Matter is anything that occupies space (volume) and has mass. Not all
matter is visible (gases), but all matter has mass and volume. Energy is not matter but the
capacity to do work. Understanding the properties of matter is foundational to chemistry
and pharmacology.
Question
A combination of two or more substances in which the substances retain their distinct
identities is called a:
CHEM 101 GENERAL CHEMISTRY | COMPLETE
STUDY GUIDE | REAL EXAM Q&A + DETAILED
RATIONALES | 2026 EDITION
Question
What is the study of matter and the changes it undergoes?
A) Biology
B) Chemistry
C) Physics
D) Engineering
Expert Rationale: Chemistry is the study of matter and the changes it undergoes. Physics
is chemistry in motion; biology is chemistry in a cell; engineering is chemistry in
application. Understanding chemistry is fundamental to nursing because it underpins
pharmacology, fluid and electrolyte balance, and metabolic processes.
Question
A tentative explanation for a set of observations is called:
A) Theory
B) Law
C) Hypothesis
D) Scientific method
Expert Rationale: A hypothesis is a tentative explanation for a set of observations. A theory
is a well-substantiated explanation developed over time; a law is a mathematical
relationship consistently found to be true. A hypothesis is testable and forms the basis for
experiments. It is not a wild guess.
Question
A general observation that does not involve numbers is classified as:
A) Quantitative data
B) Qualitative data
, C) Intensive property
D) Extensive property
Expert Rationale: Qualitative data consists of general observations that do not involve
numerical measurements. Quantitative data comprises numbers obtained by
measurement. Intensive and extensive properties refer to physical properties of matter, not
data types. Qualitative data is often descriptive (color, texture, odor).
Question
Which of the following is one of the four basic rules of good science?
A) Results should be reproducible by others
B) Conclusions should be based on opinion
C) Only one scientist should review results
D) Credit is not important
Expert Rationale: One of the four basic rules of good science is that results should be
reproducible by others. Other rules include: detailed research should be reviewable,
conclusions should be reasonable and unbiased, and proper credit should be given.
Reproducibility is essential for scientific validity.
Question
Matter is defined as anything that:
A) Has energy
B) Occupies volume and has mass
C) Can be seen
D) Can be measured with a ruler
Expert Rationale: Matter is anything that occupies space (volume) and has mass. Not all
matter is visible (gases), but all matter has mass and volume. Energy is not matter but the
capacity to do work. Understanding the properties of matter is foundational to chemistry
and pharmacology.
Question
A combination of two or more substances in which the substances retain their distinct
identities is called a:
