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CHEM 121/122: General Chemistry: Matter & Measurement

Gen Chem I&II study tools, practice problems, quizzes, readings, and more. Organized chronologically in the order you learn these concepts.

Practice Problems

Matter and Measurement Practice Test
From South Pasadena AP Chemistry.
Classification of Matter Practice Problems
35 problems from Pearson. Use the left navigation menu to practice other Gen Chem topics.

Measurement and Significant Figures

Short Readings

Matter and Measurement
Open access modules from LibreTexts on matter, measurements, and units.
Saylor: Matter and Measurements
Introductory module covering matter and its properties; significant figures; converting measurements into scientific notation; conversions between different units; and density calculations.