CHEM 120 WEEK 3 LATEST UPDATED 2026-2027 ACTUAL FINAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
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Core Domains
Measurements and Unit Conversions
Matter and Energy Properties
Atomic Structure and Electron Configuration
Periodic Table Trends
Chemical Bonding (Ionic and Covalent)
Lewis Structures
Molecular Geometry
Stoichiometry and Mole Calculations
Chemical Reactions and Balancing
Solutions and Concentrations
,Introduction
This comprehensive assessment evaluates your mastery of fundamental chemistry concepts essential for
nursing and health sciences professionals. The exam consists of 100 multiple-choice questions designed to test
both theoretical knowledge and applied problem-solving skills. Questions cover measurements, matter
properties, atomic structure, chemical bonding, stoichiometry, and reaction balancing. The scenario-based
format emphasizes real-world clinical applications, requiring critical thinking and decision-making abilities.
Success on this assessment demonstrates readiness for advanced chemistry coursework and clinical practice
where chemistry knowledge supports patient care decisions, medication calculations, and understanding of
physiological processes.
Section One: Questions 1–100
Question 1
Which of the following represents the correct conversion of 2.5 liters to milliliters?
A. 250 mL
B. 2,500 mL
C. 25,000 mL
D. 0.25 mL
🟢 Correct answer: B. 2,500 mL
🔴 RATIONALE: To convert liters to milliliters, multiply by 1,000 (since 1 L = 1,000 mL). Therefore, 2.5 L ×
1,000 = 2,500 mL.
,Question 2
What type of matter is defined as anything that occupies space and has mass?
A. Molecule
B. Element
C. Matter
D. Compound
🟢 Correct answer: C. Matter
🔴 RATIONALE: Matter is defined as anything that occupies space (volume) and has mass (amount). This is
the fundamental definition used in chemistry.
Question 3
Which subatomic particle has a positive charge and is located in the nucleus?
A. Electron
B. Neutron
C. Proton
D. Positron
🟢 Correct answer: C. Proton
, 🔴 RATIONALE: Protons are positively charged subatomic particles located in the nucleus of an atom.
Electrons have negative charge and orbit the nucleus, while neutrons have no charge and are also in the
nucleus.
Question 4
What is the correct number of significant figures in the measurement 0.00456?
A. 2
B. 3
C. 4
D. 5
🟢 Correct answer: B. 3
🔴 RATIONALE: Leading zeros are not significant. The significant figures are 4, 5, and 6, giving 3 significant
figures total.
Question 5
Which state of matter has definite volume but indefinite shape?
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF
Core Domains
Measurements and Unit Conversions
Matter and Energy Properties
Atomic Structure and Electron Configuration
Periodic Table Trends
Chemical Bonding (Ionic and Covalent)
Lewis Structures
Molecular Geometry
Stoichiometry and Mole Calculations
Chemical Reactions and Balancing
Solutions and Concentrations
,Introduction
This comprehensive assessment evaluates your mastery of fundamental chemistry concepts essential for
nursing and health sciences professionals. The exam consists of 100 multiple-choice questions designed to test
both theoretical knowledge and applied problem-solving skills. Questions cover measurements, matter
properties, atomic structure, chemical bonding, stoichiometry, and reaction balancing. The scenario-based
format emphasizes real-world clinical applications, requiring critical thinking and decision-making abilities.
Success on this assessment demonstrates readiness for advanced chemistry coursework and clinical practice
where chemistry knowledge supports patient care decisions, medication calculations, and understanding of
physiological processes.
Section One: Questions 1–100
Question 1
Which of the following represents the correct conversion of 2.5 liters to milliliters?
A. 250 mL
B. 2,500 mL
C. 25,000 mL
D. 0.25 mL
🟢 Correct answer: B. 2,500 mL
🔴 RATIONALE: To convert liters to milliliters, multiply by 1,000 (since 1 L = 1,000 mL). Therefore, 2.5 L ×
1,000 = 2,500 mL.
,Question 2
What type of matter is defined as anything that occupies space and has mass?
A. Molecule
B. Element
C. Matter
D. Compound
🟢 Correct answer: C. Matter
🔴 RATIONALE: Matter is defined as anything that occupies space (volume) and has mass (amount). This is
the fundamental definition used in chemistry.
Question 3
Which subatomic particle has a positive charge and is located in the nucleus?
A. Electron
B. Neutron
C. Proton
D. Positron
🟢 Correct answer: C. Proton
, 🔴 RATIONALE: Protons are positively charged subatomic particles located in the nucleus of an atom.
Electrons have negative charge and orbit the nucleus, while neutrons have no charge and are also in the
nucleus.
Question 4
What is the correct number of significant figures in the measurement 0.00456?
A. 2
B. 3
C. 4
D. 5
🟢 Correct answer: B. 3
🔴 RATIONALE: Leading zeros are not significant. The significant figures are 4, 5, and 6, giving 3 significant
figures total.
Question 5
Which state of matter has definite volume but indefinite shape?
