Chemistry Regents Practice Exams & Study Guide
The Chemistry Regents (Physical Setting/Chemistry) covers a full year of content, but a large share of its questions can be answered straight from the official Reference Tables if you know your way around them. RegentsLab has four complete past Chemistry Regents exams and hundreds more questions by topic — all real, all free, all with worked solutions that show the reference-table lookups step by step.
What's on the Chemistry Regents
RegentsLab organizes its Chemistry question bank into the units below — the same structure the exam draws from:
- Matter & Measurement
- Atomic Theory
- Bonding
- Quantitative Chemistry
- Chemical Reactions
- Energy & Phases
- Solutions & Acids/Bases
- Redox & Nuclear
- Organic Chemistry
Atomic structure, bonding, and acids/bases are the heaviest-weighted units; organic and nuclear chemistry are smaller but extremely predictable.
Exam format
| Section | What it is | Credits |
|---|---|---|
| Part A | Multiple-choice questions on core content | 1 credit each |
| Part B | Multiple-choice and constructed response | 1 credit each |
| Part C | Constructed response, often lab- or application-based | 1 credit each |
How to practice
Work through complete past administrations question by question, or drill a single topic. Every question includes a full worked solution. Start in the practice lab, and keep the official reference materials open beside you — building fluency with them is part of the preparation.
Frequently asked questions
How many questions are on the Chemistry Regents?
About 85 questions worth 1 credit each — roughly 50 multiple-choice in Part A and the rest split between Part B's mixed format and Part C's constructed-response questions. You get 3 hours.
What score do you need to pass the Chemistry Regents?
A scaled score of 65. Because every question is worth one credit, there's no partial-credit strategy — volume of practice is what moves your score.
Do you get the Reference Tables on the Chemistry Regents?
Yes — the official Chemistry Reference Tables are provided, and many questions are direct lookups (periodic trends, solubility, polyatomic ions, heats of reaction). Practicing with the tables open is non-negotiable.
What topics are on the Chemistry Regents?
Atomic structure, the periodic table, bonding, moles and stoichiometry, reactions and kinetics, equilibrium, gases and phases, solutions, acids and bases, redox and electrochemistry, organic chemistry, and nuclear chemistry.
Is the Chemistry Regents changing?
New York is phasing in new science exams aligned to the NYSSLS standards, with Biology and Earth and Space Sciences first. Check with your school for which version you'll take — the core chemistry content on this page carries over either way.
Practice Chemistry by topic
- Mole ratios
- Bonding & polarity
- Phases, heat & energy
- Atomic structure & isotopes
- Reaction types & balancing
- Titration
Chemistry study tools
Real past Chemistry Regents with full worked solutions.
Score calculatorConvert a raw score to a scaled score with the official chart.
Reference & formulasThe formulas, terms, and official table to know.
Review sheetOne-page cheat sheet of must-know concepts.