AP Chemistry Diagnostic

Short topic-level assessments built around documented student misconceptions. Each diagnostic surfaces which specific wrong ways of thinking are costing you points, then routes you to targeted drills that fix only those. Pick a topic to start.

Unit 1

Atomic Structure & Properties

1.1 Moles and Molar Mass Start → 1.2 Mass Spectrometry of Elements Start → 1.3 Elemental Composition of Pure Substances Start → 1.4 Composition of Mixtures Start → 1.5 Atomic Structure and Electron Configuration Start → 1.6 Photoelectron Spectroscopy Start → 1.7 Periodic Trends Start → 1.8 Valence Electrons and Ionic Compounds Start →

Unit 2

Compound Structure and Properties

2.1 Types of Chemical Bonds Start → 2.2 Intramolecular Force and Potential Energy Start → 2.3 Structure of Ionic Solids Start → 2.4 Structure of Metals and Alloys Start → 2.5 Lewis Diagrams Start → 2.6 Resonance and Formal Charge Start → 2.7 VSEPR and Bond Hybridization Start →

Unit 3

Properties of Substances and Mixtures

3.1 Intermolecular and Interparticle Forces Start → 3.2 Properties of Solids Start → 3.3 Solids, Liquids, and Gases Start → 3.4 Ideal Gas Law Start → 3.5 Kinetic Molecular Theory Start → 3.6 Deviation from the Ideal Gas Law Start → 3.7 Solutions and Mixtures Start → 3.8 Representations of Solutions Start → 3.9 Separation of Solutions and Mixtures Start → 3.10 Solubility Start → 3.11 Spectroscopy and the Electromagnetic Spectrum Start → 3.12 Properties of Photons Start → 3.13 Beer-Lambert Law Start →

Unit 4

Chemical Reactions

4.1 Introduction to Reactions Start → 4.2 Net Ionic Equations Start → 4.3 Representations of Reactions Start → 4.4 Physical and Chemical Changes Start → 4.5 Stoichiometry Start → 4.6 Introduction to Titration Start → 4.7 Types of Chemical Reactions Start → 4.8 Introduction to Acid-Base Reactions Start → 4.9 Oxidation-Reduction (Redox) Reactions Start →

Unit 5

Kinetics

5.1 Reaction Rates Start → 5.2 Introduction to Rate Law Start → 5.3 Concentration Changes Over Time Start → 5.4 Elementary Reactions Start → 5.5 Collision Model Start → 5.6 Reaction Energy Profile Start → 5.7 Introduction to Reaction Mechanisms Start → 5.8 Reaction Mechanism and Rate Law Start → 5.9 Pre-Equilibrium Approximation Start → 5.10 Multistep Reaction Energy Profile Start → 5.11 Catalysis Start →

Diagnostics for Units 6 through 9 are rolling out as topic content goes live. Each diagnostic is about 10 questions and takes 8 to 12 minutes. Missed items map to named misconceptions; the result page links you straight to drills that target those specific failures.