Stoichiometry, equilibrium, kinetics, thermo.
Real Test
Full-length test
60 questions, 90 min countdown. Same length and pacing as the real exam.
Warmup
Quick practice
Random questions across all topics. No timer, just reps.
Targeted
Practice by topic
Drill one skill until it stops scaring you.
Stuck? Ask the AI tutor.
Adaptive help that explains your mistakes step-by-step.
Exam blueprint
60 MCQ + 7 FRQ. Each section 50% of score.
Unit 1Atomic Structure and Properties7–9%
Unit 2Compound Structure and Properties7–9%
Unit 3Properties of Substances and Mixtures18–22%
Unit 4Chemical Reactions7–9%
Unit 5Kinetics7–9%
Unit 6Thermodynamics7–9%
Unit 7Equilibrium7–9%
Unit 8Acids and Bases11–15%
Unit 9Applications of Thermodynamics13–17%
Source: College Board Course & Exam Descriptions, 2025–26.