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Ivy Tech Community College's CHEM 101 (Introductory
Chemistry I) Final Exam 2026/2027 | Latest Verified
Questions and Detailed Answers
OVERVIEW DESCRIPTION:
This comprehensive multiple-choice exam for Ivy Tech Community College's CHEM 101
(Introductory Chemistry I) is designed to rigorously assess student mastery of the core
semester topics, including atomic structure, stoichiometry, chemical bonding, and
thermochemistry. The assessment emphasizes both conceptual understanding and
quantitative problem-solving through integrated calculation problems involving molarity
(M₁V₁ = M₂V₂), the Ideal Gas Law (PV = nRT), percent yield, and solution preparation.
Spanning nomenclature, periodic trends, VSEPR geometry, and laboratory data
interpretation, the exam ensures students demonstrate proficiency in the foundational
principles required for subsequent coursework in the health sciences and general
chemistry pathways.
QUESTION 1
How many significant figures are in the measurement 0.004060 m?
A. 3
B. 4
C. 5
D. 6
CORRECT ANSWER: B
EXPERT RATIONALE: Leading zeros are not significant, but captive zeros and trailing
zeros after a decimal point are. Thus, 0.004060 has four significant figures (4, 0, 6, 0).
QUESTION 2
Which of the following represents a physical change?
A. Iron rusting in moist air
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B. Wood burning in a fireplace
C. Sucrose dissolving in hot coffee
D. Baking soda reacting with vinegar
CORRECT ANSWER: C
EXPERT RATIONALE: Dissolving is a physical change because the chemical identity of
sucrose remains unchanged and the process is reversible. The other options involve the
formation of new chemical substances.
QUESTION 3
What is the correct name for the compound Fe₂O₃?
A. Iron(II) oxide
B. Iron(III) oxide
C. Diiron trioxide
D. Iron oxide
CORRECT ANSWER: B
EXPERT RATIONALE: Iron is a transition metal requiring a Roman numeral for its charge.
Oxygen has a -2 charge, so with three oxide ions (-6 total), two iron ions must balance
with a +3 charge each.
QUESTION 4
Which subatomic particle plays the primary role in determining an atom's chemical
bonding behavior?
A. Proton
B. Neutron
C. Nucleon
D. Valence electron
CORRECT ANSWER: D
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EXPERT RATIONALE: Valence electrons are located in the outermost shell and are
involved in forming chemical bonds with other atoms. Protons determine element
identity, not reactivity.
QUESTION 5
What volume of 2.50 M NaCl stock solution is needed to prepare 500.0 mL of 0.150 M
NaCl?
A. 12.0 mL
B. 20.0 mL
C. 30.0 mL
D. 83.3 mL
CORRECT ANSWER: C
EXPERT RATIONALE: Using M₁V₁ = M₂V₂: (2.50 M)(V₁) = (0.150 M)(500.0 mL); V₁ = 30.0
mL. This represents the volume of concentrated stock required for dilution.
QUESTION 6
In the reaction 2H₂ + O₂ → 2H₂O, how many moles of H₂ are required to fully react with
4.0 moles of O₂?
A. 2.0 mol
B. 4.0 mol
C. 8.0 mol
D. 16.0 mol
CORRECT ANSWER: C
EXPERT RATIONALE: The stoichiometric ratio of H₂ to O₂ is 2:1. Therefore, 4.0 moles O₂
× (2 mol H₂ / 1 mol O₂) = 8.0 mol H₂.
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QUESTION 7
Which type of bond involves the unequal sharing of electrons between two nonmetals?
A. Metallic bond
B. Nonpolar covalent bond
C. Polar covalent bond
D. Ionic bond
CORRECT ANSWER: C
EXPERT RATIONALE: A polar covalent bond occurs when atoms with differing
electronegativities share electrons unequally, creating partial positive and negative
charges. Ionic bonds involve electron transfer.
QUESTION 8
A sample of gas occupies 10.0 L at 2.00 atm. If the temperature remains constant, what
is the new volume if the pressure is increased to 5.00 atm?
A. 2.50 L
B. 4.00 L
C. 20.0 L
D. 25.0 L
CORRECT ANSWER: B
EXPERT RATIONALE: According to Boyle's Law (P₁V₁ = P₂V₂ at constant n, T): (2.00
atm)(10.0 L) = (5.00 atm)(V₂); V₂ = 4.00 L.
QUESTION 9
What is the empirical formula of a compound that contains 40.0% carbon, 6.7%
hydrogen, and 53.3% oxygen by mass?
A. CH₂O
B. C₂H₄O₂
Ivy Tech Community College's CHEM 101 (Introductory
Chemistry I) Final Exam 2026/2027 | Latest Verified
Questions and Detailed Answers
OVERVIEW DESCRIPTION:
This comprehensive multiple-choice exam for Ivy Tech Community College's CHEM 101
(Introductory Chemistry I) is designed to rigorously assess student mastery of the core
semester topics, including atomic structure, stoichiometry, chemical bonding, and
thermochemistry. The assessment emphasizes both conceptual understanding and
quantitative problem-solving through integrated calculation problems involving molarity
(M₁V₁ = M₂V₂), the Ideal Gas Law (PV = nRT), percent yield, and solution preparation.
Spanning nomenclature, periodic trends, VSEPR geometry, and laboratory data
interpretation, the exam ensures students demonstrate proficiency in the foundational
principles required for subsequent coursework in the health sciences and general
chemistry pathways.
QUESTION 1
How many significant figures are in the measurement 0.004060 m?
A. 3
B. 4
C. 5
D. 6
CORRECT ANSWER: B
EXPERT RATIONALE: Leading zeros are not significant, but captive zeros and trailing
zeros after a decimal point are. Thus, 0.004060 has four significant figures (4, 0, 6, 0).
QUESTION 2
Which of the following represents a physical change?
A. Iron rusting in moist air
,2|Page
B. Wood burning in a fireplace
C. Sucrose dissolving in hot coffee
D. Baking soda reacting with vinegar
CORRECT ANSWER: C
EXPERT RATIONALE: Dissolving is a physical change because the chemical identity of
sucrose remains unchanged and the process is reversible. The other options involve the
formation of new chemical substances.
QUESTION 3
What is the correct name for the compound Fe₂O₃?
A. Iron(II) oxide
B. Iron(III) oxide
C. Diiron trioxide
D. Iron oxide
CORRECT ANSWER: B
EXPERT RATIONALE: Iron is a transition metal requiring a Roman numeral for its charge.
Oxygen has a -2 charge, so with three oxide ions (-6 total), two iron ions must balance
with a +3 charge each.
QUESTION 4
Which subatomic particle plays the primary role in determining an atom's chemical
bonding behavior?
A. Proton
B. Neutron
C. Nucleon
D. Valence electron
CORRECT ANSWER: D
,3|Page
EXPERT RATIONALE: Valence electrons are located in the outermost shell and are
involved in forming chemical bonds with other atoms. Protons determine element
identity, not reactivity.
QUESTION 5
What volume of 2.50 M NaCl stock solution is needed to prepare 500.0 mL of 0.150 M
NaCl?
A. 12.0 mL
B. 20.0 mL
C. 30.0 mL
D. 83.3 mL
CORRECT ANSWER: C
EXPERT RATIONALE: Using M₁V₁ = M₂V₂: (2.50 M)(V₁) = (0.150 M)(500.0 mL); V₁ = 30.0
mL. This represents the volume of concentrated stock required for dilution.
QUESTION 6
In the reaction 2H₂ + O₂ → 2H₂O, how many moles of H₂ are required to fully react with
4.0 moles of O₂?
A. 2.0 mol
B. 4.0 mol
C. 8.0 mol
D. 16.0 mol
CORRECT ANSWER: C
EXPERT RATIONALE: The stoichiometric ratio of H₂ to O₂ is 2:1. Therefore, 4.0 moles O₂
× (2 mol H₂ / 1 mol O₂) = 8.0 mol H₂.
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QUESTION 7
Which type of bond involves the unequal sharing of electrons between two nonmetals?
A. Metallic bond
B. Nonpolar covalent bond
C. Polar covalent bond
D. Ionic bond
CORRECT ANSWER: C
EXPERT RATIONALE: A polar covalent bond occurs when atoms with differing
electronegativities share electrons unequally, creating partial positive and negative
charges. Ionic bonds involve electron transfer.
QUESTION 8
A sample of gas occupies 10.0 L at 2.00 atm. If the temperature remains constant, what
is the new volume if the pressure is increased to 5.00 atm?
A. 2.50 L
B. 4.00 L
C. 20.0 L
D. 25.0 L
CORRECT ANSWER: B
EXPERT RATIONALE: According to Boyle's Law (P₁V₁ = P₂V₂ at constant n, T): (2.00
atm)(10.0 L) = (5.00 atm)(V₂); V₂ = 4.00 L.
QUESTION 9
What is the empirical formula of a compound that contains 40.0% carbon, 6.7%
hydrogen, and 53.3% oxygen by mass?
A. CH₂O
B. C₂H₄O₂
