Composition of Pure Substances & Mixture – AP Chemistry Worksheet Practice



This Printable AP Chemistry Worksheet contains carefully selected high-quality multiple-choice questions on Elemental Composition of Pure Substances and Mixtures. A great printable resource to assign to your students for homework, classwork, practice, or review for a quiz, test, or exam.

My resources follow the New AP Chemistry Course Framework.

This worksheet has 37 multiple choice questions in the following two topics of

Unit 1: Atomic Structures and Properties

Unit 1.3: Elemental Composition of Pure Substances (29 questions)

  • Molecular and Empirical Formulas
  • Empirical Formulas for Nonmolecular Substances
  • Mole Ratio of Atoms or Ions
  • Percent Composition by Mass

Unit 1.4: Composition of Mixtures (8 questions)

  • Intro and understanding Mixtures
  • Analyzing the composition of a mixture for purity
  • Does not cover the separation of mixtures or solutions

This worksheet is also available in Self-grading Google Form

Organized Question Sets

Each set contains a nice mix of topic-specific questions to test students’ basic, essential, and enduring knowledge, skills, and understanding of the topic.

Nicely organized from easy to medium to hard questions, which help students build confidence in the beginning so they can better tackle the harder questions toward the end. All of your students will appreciate the organization of the questions, which will help them assess their strengths and weaknesses.

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I’ll have about 40 of these AP Chem Printable Multiple Choice Practice Worksheets available soon.

  • Each is best used as a daily assignment to assess students’ knowledge and understanding of the core topic contents.
  • Excellent mix of AP Exam and Non-AP Exam questions.

For AP Chemistry Exam Prep, please use my:

Unit Review Test Products (coming soon)

  • With high-quality AP Exam-type questions
  • Available for each of the 9 AP Chem Units

Unit/topic bundles will be available soon to help you save a few bucks.

Preview: Please preview to instantly practice a few selected questions from this worksheet.


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