AP Chemistry Unit 1 Practice

Instructions

  1. Choose a topic, then start. Mixed review includes all eight topics.
  2. Select one answer, or enter a number and choose its unit. For a count, choose count; for a ratio, choose no units.
  3. Submit once per question. Read the explanation, then continue. Your score counts correct answers; a significant figure note does not remove a point.
  4. At the end, Try again shuffles the questions and answer choices. Choose another topic to build a new set.

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AP Chemistry · Unit 1

Catch up at your own pace.

Choose one topic for six questions, or Mixed review for all 48. Read the feedback after each answer.

No timer. Use scratch paper and a calculator. All the atomic masses you need are below.

Reference

Atomic masses (g/mol)

Use these values. Keep extra digits in your work and round only the final answer. Isotope masses in model questions are given in the prompt.

H
1.01
C
12.01
N
14.01
O
16.00
Na
22.99
Mg
24.31
Al
26.98
S
32.06
Cl
35.45
K
39.10
Ca
40.08
Fe
55.85

Avogadro constant: 6.022 × 1023 mol−1

Aligned practice for AP Chemistry CED topics 1.1 to 1.8. Original ZornScience questions.

About this activity

Review AP Chemistry Unit 1, Atomic Structure and Properties, with 48 original questions. Each answer gets an explanation right away, and your score is broken down by topic.

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