CORRECT ANSWERS ALREADY GRADED A+
|VERIFIED TO PASS
CHEM 104 Final Exam – Comprehensive Practice Exam
with Answer Key
130 Practice Questions with Correct Answers
Table of Contents
1. Atomic Structure and Periodic Trends
2. Chemical Bonding and Molecular Geometry
3. Chemical Reactions and Stoichiometry
4. Gases
5. Thermochemistry
6. Solutions
7. Chemical Equilibrium
8. Acids and Bases
9. Thermodynamics
10. Kinetics
11. Electrochemistry
12. Comprehensive Answer Key
,Section 1: Atomic Structure and Periodic Trends (Questions 1–
10)
1. Which particle determines the identity of an element?
A. Electron
B. Proton
C. Neutron
D. Positron
Answer: B
2. The atomic number equals the number of:
A. Neutrons
B. Protons
C. Electrons only
D. Nucleons
Answer: B
3. Which has the greatest atomic radius?
A. Li
B. Na
C. K
D. Rb
Answer: D
4. Ionization energy generally:
A. Decreases across a period
B. Increases across a period
,C. Never changes
D. Depends only on mass
Answer: B
5. Which element is the most electronegative?
A. Oxygen
B. Chlorine
C. Fluorine
D. Nitrogen
Answer: C
6. Isotopes differ in:
A. Protons
B. Neutrons
C. Electrons only
D. Atomic number
Answer: B
7. Which orbital holds a maximum of 2 electrons?
A. s
B. p
C. d
D. f
Answer: A
8. Which quantum number describes orbital shape?
A. Principal
B. Magnetic
, C. Spin
D. Angular momentum
Answer: D
9. Which principle states no two electrons share identical
quantum numbers?
A. Hund's Rule
B. Pauli Exclusion Principle
C. Aufbau Principle
D. Octet Rule
Answer: B
10. Noble gases are generally:
A. Highly reactive
B. Strong acids
C. Chemically inert
D. Metals
Answer: C
Section 2: Chemical Bonding and Molecular Geometry
(Questions 11–20)
11. Ionic bonds form by:
A. Electron sharing
B. Electron transfer
C. Proton exchange
D. Neutron exchange
Answer: B