CHEM 141 Final exam 2025 Questions
and Answers
Matter - --CORRECT ANSWER--Anything that has mass and takes up space
Atoms - --CORRECT ANSWER--Smallest distinguishable part of an element
Potential energy - --CORRECT ANSWER--Energy that an object possesses due to
its position
Attractions and repulsions - --CORRECT ANSWER--Forces that cause objects to
be attracted to or repelled from each other
Theories - --CORRECT ANSWER--Explanations based on evidence and
observations
Electromagnetic forces - --CORRECT ANSWER--Forces of attraction between
atoms/molecules
Stable systems - --CORRECT ANSWER--Systems where attractive and repulsive
forces are equal
Phase change - --CORRECT ANSWER--Transition between different states of
matter
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, Temperature - --CORRECT ANSWER--Measure of the average kinetic energy of
particles
Scientific explanation - --CORRECT ANSWER--Consists of a claim, evidence,
and reasoning
Law - --CORRECT ANSWER--Describes a phenomenon
Theory - --CORRECT ANSWER--Explains a phenomenon
Protons - --CORRECT ANSWER--Positively charged particles in the nucleus of
an atom
Atom - --CORRECT ANSWER--Smallest unit of an element
Isomers - --CORRECT ANSWER--Different types of elements with different
numbers of neutrons
Electrons - --CORRECT ANSWER--Negatively charged particles in the outer
layers of an atom
Thompson - --CORRECT ANSWER--Scientist who discovered the electron
Cathode ray tube experiment - --CORRECT ANSWER--Experiment that led to
the discovery of the electron
Electrical charge - --CORRECT ANSWER--Charge carried by particles in
Thompson's experiment
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and Answers
Matter - --CORRECT ANSWER--Anything that has mass and takes up space
Atoms - --CORRECT ANSWER--Smallest distinguishable part of an element
Potential energy - --CORRECT ANSWER--Energy that an object possesses due to
its position
Attractions and repulsions - --CORRECT ANSWER--Forces that cause objects to
be attracted to or repelled from each other
Theories - --CORRECT ANSWER--Explanations based on evidence and
observations
Electromagnetic forces - --CORRECT ANSWER--Forces of attraction between
atoms/molecules
Stable systems - --CORRECT ANSWER--Systems where attractive and repulsive
forces are equal
Phase change - --CORRECT ANSWER--Transition between different states of
matter
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Temperature - --CORRECT ANSWER--Measure of the average kinetic energy of
particles
Scientific explanation - --CORRECT ANSWER--Consists of a claim, evidence,
and reasoning
Law - --CORRECT ANSWER--Describes a phenomenon
Theory - --CORRECT ANSWER--Explains a phenomenon
Protons - --CORRECT ANSWER--Positively charged particles in the nucleus of
an atom
Atom - --CORRECT ANSWER--Smallest unit of an element
Isomers - --CORRECT ANSWER--Different types of elements with different
numbers of neutrons
Electrons - --CORRECT ANSWER--Negatively charged particles in the outer
layers of an atom
Thompson - --CORRECT ANSWER--Scientist who discovered the electron
Cathode ray tube experiment - --CORRECT ANSWER--Experiment that led to
the discovery of the electron
Electrical charge - --CORRECT ANSWER--Charge carried by particles in
Thompson's experiment
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
