Arizona State University CHM113
General Chemistry I – Final Exam (150+
Questions And Answers with
Rationales)
EXAM OVERVIEW
CHM113 General Chemistry I is the first-semester
introduction to chemistry, covering the nature of atoms
and elements, how atoms combine to form molecules
and compounds, interactions between atoms and
molecules, chemical bonding models, and the
fundamental principles of chemistry.
Key Topics Covered on the Final Exam:
• Matter, Measurement, and Unit Conversions
• Atoms, Molecules, and Ions
• Chemical Reactions and Reaction Stoichiometry
• Reactions in Aqueous Solution
• Thermochemistry
, • Electronic Structure of Atoms
• Periodic Properties of the Elements
• Chemical Bonding and Molecular Geometry
• Gases
• Liquids and Intermolecular Forces
• Properties of Solutions
• Chemical Kinetics
• Chemical Equilibrium
• Acids and Bases
PART 1: MATTER, MEASUREMENT & UNIT
CONVERSIONS (Questions 1-20)
Question 1
Which of the following is an example of a chemical
change?
• A) NaCl(s) → NaCl(g)
• B) Ice melting to water
• C) Iron rusting
, • D) Sugar dissolving in water
• Answer: C
• Rationale: A chemical change results in the
formation of a new substance with different
properties. Rusting of iron (oxidation) produces iron
oxide, a new compound. NaCl(s) → NaCl(g), ice
melting, and sugar dissolving are all physical changes
(changes in state or appearance without changing
chemical composition).
Question 2
Which of the following is a physical property?
• A) Flammability
• B) Reactivity with acid
• C) Density
• D) Corrosiveness
• Answer: C
• Rationale: A physical property can be observed
without changing the substance into a different
substance. Density is a physical property.
, Flammability, reactivity with acid, and corrosiveness
are chemical properties.
Question 3
How many significant figures are in the number
0.004050?
• A) 3
• B) 4
• C) 5
• D) 6
• Answer: B
• Rationale: The number 0.004050 has four significant
figures. Leading zeros (0.00) are not significant. The
digits 4, 0, 5, and the trailing zero after the decimal
point are significant.
Question 4
What is the result of the following calculation with the
correct number of significant figures: 2.34 + 0.5?
General Chemistry I – Final Exam (150+
Questions And Answers with
Rationales)
EXAM OVERVIEW
CHM113 General Chemistry I is the first-semester
introduction to chemistry, covering the nature of atoms
and elements, how atoms combine to form molecules
and compounds, interactions between atoms and
molecules, chemical bonding models, and the
fundamental principles of chemistry.
Key Topics Covered on the Final Exam:
• Matter, Measurement, and Unit Conversions
• Atoms, Molecules, and Ions
• Chemical Reactions and Reaction Stoichiometry
• Reactions in Aqueous Solution
• Thermochemistry
, • Electronic Structure of Atoms
• Periodic Properties of the Elements
• Chemical Bonding and Molecular Geometry
• Gases
• Liquids and Intermolecular Forces
• Properties of Solutions
• Chemical Kinetics
• Chemical Equilibrium
• Acids and Bases
PART 1: MATTER, MEASUREMENT & UNIT
CONVERSIONS (Questions 1-20)
Question 1
Which of the following is an example of a chemical
change?
• A) NaCl(s) → NaCl(g)
• B) Ice melting to water
• C) Iron rusting
, • D) Sugar dissolving in water
• Answer: C
• Rationale: A chemical change results in the
formation of a new substance with different
properties. Rusting of iron (oxidation) produces iron
oxide, a new compound. NaCl(s) → NaCl(g), ice
melting, and sugar dissolving are all physical changes
(changes in state or appearance without changing
chemical composition).
Question 2
Which of the following is a physical property?
• A) Flammability
• B) Reactivity with acid
• C) Density
• D) Corrosiveness
• Answer: C
• Rationale: A physical property can be observed
without changing the substance into a different
substance. Density is a physical property.
, Flammability, reactivity with acid, and corrosiveness
are chemical properties.
Question 3
How many significant figures are in the number
0.004050?
• A) 3
• B) 4
• C) 5
• D) 6
• Answer: B
• Rationale: The number 0.004050 has four significant
figures. Leading zeros (0.00) are not significant. The
digits 4, 0, 5, and the trailing zero after the decimal
point are significant.
Question 4
What is the result of the following calculation with the
correct number of significant figures: 2.34 + 0.5?
