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Description: This revision resource contains 200 multiple-choice questions covering all
20 chapters of Foundations of College Chemistry, 16th Edition by Hein, Arena, and
Willard. Questions span foundational topics including measurement, atomic structure,
chemical bonding, stoichiometry, solutions, acids and bases, equilibrium, oxidation-
reduction, nuclear chemistry, organic chemistry, and biochemistry . Each question
includes four answer choices with the correct answer clearly marked. Answer choices are
deliberately randomized to avoid patterns, ensuring effective test preparation.
Key Words: chemistry fundamentals, atomic theory, periodic table, chemical bonds,
stoichiometry, gas laws, solutions, acids bases salts, equilibrium, redox, nuclear
chemistry, organic chemistry, biochemistry, significant figures, unit conversion, molar
mass, concentration, pH, reaction types, mole concept
CHAPTER 1: AN INTRODUCTION TO CHEMISTRY
1. Which of the following is a chemical change?
A. Melting ice
B. Boiling water
,C. Rusting iron ✅
D. Dissolving sugar
2. The smallest particle of an element that retains its identity is the
A. Molecule
B. Atom ✅
C. Compound
D. Proton
3. Which of the following is a homogeneous mixture?
A. Granite
B. Salad
C. Salt water ✅
D. Sand and iron filings
4. The metric prefix "kilo-" means
A. 100
B. 1000 ✅
C. 0.1
D. 10
5. Which of these is a heterogeneous mixture?
A. Air
B. Salt water
C. Sand and salt ✅
D. Vinegar
6. A theory is best described as
A. A tentative explanation of observations
B. An explanation supported by considerable evidence ✅
C. A simple statement of natural phenomena
D. An educated guess
,7. Which state of matter has neither definite shape nor definite volume?
A. Solid
B. Liquid
C. Gas ✅
D. Plasma
8. One meter equals
A. 100 centimeters ✅
B. 10 centimeters
C. 1000 centimeters
D. 0.01 centimeters
9. The steps of the scientific method in order are
A. Hypothesis, observation, experiment, theory
B. Observation, hypothesis, experiment, theory ✅
C. Experiment, observation, theory, hypothesis
D. Theory, hypothesis, observation, experiment
10. Which of the following is a pure substance?
A. Air
B. Seawater
C. Elemental copper ✅
D. Soil
CHAPTER 2: STANDARDS FOR MEASUREMENT
11. The number 0.00430 has how many significant figures?
A. 6
B. 2
, C. 4
D. 3 ✅
12. Convert 0.25 L to mL.
A. 2.5 mL
B. 25 mL
C. 250 mL ✅
D. 2500 mL
13. The SI unit for mass is
A. Gram
B. Kilogram ✅
C. Pound
D. Ounce
14. What decimal power does the abbreviation milli- represent?
A. 1 × 10⁶
B. 1 × 10³
C. 1 × 10⁻⁶
D. 1 × 10⁻³ ✅
15. The correct result of the addition 12 + 1.2 + 0.12 + 0.012 with proper significant
figures is
A. 13
B. 13.3 ✅
C. 13.33
D. 13.332
16. 0 K equals
A. 0 °C
B. –273.15 °C ✅
C. 32 °F
D. 273 K