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100+ Free NY Regents Chemistry Practice Questions

Pass your Regents Examination in Physical Science: Chemistry (NYSP12SLS) exam on the first try — instant access, no signup required.

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What is the correct formula for aluminum sulfate?

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2026 Statistics

Key Facts: NY Regents Chemistry Exam

June 2026

first administration of the new Physical Science: Chemistry Regents exam

NYSED implementation schedule and June 2026 examination schedule

45-55

total questions in the official new exam design

NYSED Physical Science: Chemistry Educator Guide

9-11

question clusters in the official test design

NYSED Physical Science: Chemistry Educator Guide

3 hours

standard testing time

NYSED Directions for Administering Regents Examinations and Educator Guide

65

scale-score passing standard for Regents examinations

NYSED How Are Regents Examinations Scored?

2025

edition year of the Physical Science: Chemistry Reference Tables used for the new exam

NYSED Science Reference Tables

3

required Physical Science: Chemistry Investigations for exam admission

NYSED Investigations memoranda

For 2026, NY Regents Chemistry readiness means preparing for the new Regents Examination in Physical Science: Chemistry (NYSP12SLS), not only the older Physical Setting/Chemistry format. NYSED's educator guide gives a 45-55 question, 9-11 cluster design with roughly 60% multiple-choice and 40% constructed response in a three-hour session. The largest blueprint areas are Structures and Properties of Matter (30-40%) and Chemical Reactions (36-46%), with additional Energy, Waves and Electromagnetic Radiation, Matter and Energy in Organisms and Ecosystems, and Engineering/Technology/Application of Science coverage. Students also need the 2025 reference tables and successful completion of the required course Investigations for exam admission.

Sample NY Regents Chemistry Practice Questions

Try these sample questions to test your NY Regents Chemistry exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A neutral atom has 17 protons. Which statement must be true?
A.The atom has 17 electrons.
B.The atom has 17 neutrons.
C.The atom has a mass number of 17.
D.The atom has 34 electrons.
Explanation: In a neutral atom, the number of electrons equals the number of protons. Atomic number 17 identifies chlorine, but the neutron count can vary among isotopes.
2An atom of carbon-14 has 6 protons. How many neutrons does it have?
A.6
B.8
C.14
D.20
Explanation: Mass number equals protons plus neutrons. Carbon-14 has 14 total nucleons, so 14 - 6 = 8 neutrons.
3Which particle has the smallest mass?
A.Proton
B.Neutron
C.Electron
D.Alpha particle
Explanation: Electrons have much less mass than protons or neutrons. An alpha particle contains two protons and two neutrons, so it is much more massive than an electron.
4An element has isotopes with different mass numbers because atoms of the element can have different numbers of
A.protons
B.neutrons
C.electrons in a neutral atom
D.occupied principal energy levels
Explanation: Isotopes of an element have the same number of protons but different numbers of neutrons. Changing the neutron count changes the mass number without changing the element identity.
5Which element is in Group 18 and is generally unreactive?
A.Sodium
B.Chlorine
C.Neon
D.Magnesium
Explanation: Neon is a noble gas in Group 18. Noble gases have filled valence shells, which makes them generally unreactive under ordinary conditions.
6As atomic number increases from lithium to fluorine across Period 2, atomic radius generally
A.decreases because nuclear charge increases across the same shell
B.increases because new electron shells are added
C.stays the same because all atoms are in Period 2
D.increases because valence electrons repel the nucleus
Explanation: Across a period, electrons are added to the same principal energy level while the number of protons increases. The stronger attraction pulls electrons closer, so atomic radius generally decreases.
7Which atom is most likely to form a 2+ ion?
A.O
B.Mg
C.Cl
D.Ne
Explanation: Magnesium is a Group 2 metal with two valence electrons. It commonly loses those two electrons to form Mg2+.
8Which type of bond forms when electrons are transferred from a metal atom to a nonmetal atom?
A.Nonpolar covalent
B.Metallic
C.Ionic
D.Hydrogen
Explanation: Ionic bonding forms when electrons are transferred, producing oppositely charged ions that attract. This often occurs between metals and nonmetals.
9Which substance is best classified as a molecular compound?
A.NaCl
B.CO2
C.MgO
D.KBr
Explanation: CO2 is made of nonmetal atoms bonded covalently, so it is molecular. The other choices pair metals with nonmetals and are ionic compounds.
10What is the correct formula for calcium chloride?
A.CaCl
B.CaCl2
C.Ca2Cl
D.Ca2Cl2
Explanation: Calcium forms Ca2+ and chloride forms Cl-. Two chloride ions are needed to balance one calcium ion, giving CaCl2.

About the NY Regents Chemistry Exam

The Regents Examination in Physical Science: Chemistry (NYSP12SLS) is New York's new high school chemistry Regents exam aligned to the New York State P-12 Science Learning Standards. It debuts in June 2026 while the legacy Physical Setting/Chemistry exam remains available through June 2027 for transition cohorts. The new exam is a three-hour written test organized into question clusters around assessment storylines and scientific phenomena, using multiple-choice and constructed-response items, the 2025 Physical Science: Chemistry Reference Tables, and three-dimensional reasoning across science practices, core ideas, and crosscutting concepts.

Assessment

NYSED's 2026 Physical Science: Chemistry test design calls for 9-11 question clusters and 45-55 total questions, with approximately 60% multiple-choice questions and 40% constructed-response questions. Each cluster follows an assessment storyline and may include passages, tables, graphs, diagrams, photos, and other stimuli. This practice bank provides 100 original multiple-choice questions for readiness practice, not a copied Regents form.

Time Limit

Three hours

Passing Score

A scale score of 65 is the Regents passing standard. For the new NYSP12SLS Physical Science: Chemistry exam, the scoring conversion chart for each administration converts raw scores to final scale scores from 0 to 100 and performance levels; Level 3 indicates students minimally meet expectations for Regents diploma content-area requirements.

Exam Fee

No direct NYSED student exam fee published for enrolled students; Regents exams are school-administered New York State assessments. (New York State Education Department (NYSED), Office of State Assessment)

NY Regents Chemistry Exam Content Outline

30-40%

Structures and Properties of Matter

Periodic patterns, atomic structure, nuclear processes, intermolecular forces, gas behavior, solutions, and particle-level structure-function reasoning.

36-46%

Chemical Reactions

Reaction evidence, reaction types, conservation of matter, stoichiometry, acids and bases, kinetics, equilibrium, and electron-transfer energy conversions.

10-14%

Energy

Energy transfer, calorimetry, potential energy models, thermal systems, electric interactions, and conservation of energy in chemical and physical changes.

5-7%

Waves and Electromagnetic Radiation

Absorption and emission of electromagnetic radiation, spectra, frequency, wavelength, and evaluation of radiation-matter claims.

2-5%

Matter and Energy in Organisms and Ecosystems

Chemistry connections to matter cycling, energy flow, conservation of atoms, and chemical transformations in biological and environmental systems.

5-11%

Engineering, Technology, and Applications of Science

Material choices, design criteria and constraints, trade-offs, sustainability, models, simulations, and optimization in applied chemistry contexts.

How to Pass the NY Regents Chemistry Exam

What You Need to Know

  • Passing score: A scale score of 65 is the Regents passing standard. For the new NYSP12SLS Physical Science: Chemistry exam, the scoring conversion chart for each administration converts raw scores to final scale scores from 0 to 100 and performance levels; Level 3 indicates students minimally meet expectations for Regents diploma content-area requirements.
  • Assessment: NYSED's 2026 Physical Science: Chemistry test design calls for 9-11 question clusters and 45-55 total questions, with approximately 60% multiple-choice questions and 40% constructed-response questions. Each cluster follows an assessment storyline and may include passages, tables, graphs, diagrams, photos, and other stimuli. This practice bank provides 100 original multiple-choice questions for readiness practice, not a copied Regents form.
  • Time limit: Three hours
  • Exam fee: No direct NYSED student exam fee published for enrolled students; Regents exams are school-administered New York State assessments.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

NY Regents Chemistry Study Tips from Top Performers

1Use the new Physical Science: Chemistry blueprint first: Structures and Properties of Matter plus Chemical Reactions together drive the largest share of the exam.
2Practice with the 2025 Physical Science: Chemistry Reference Tables so you know where to find atomic masses, constants, formulas, and other supplied information quickly.
3Read cluster stimuli before answering; the new exam uses storylines with data tables, graphs, diagrams, passages, and photos that build on each other.
4Review the required Investigations themes: evaporation and intermolecular forces, designed materials structure-function, and properties of acids and bases.
5For calculations, write units through every setup; Regents chemistry questions often reward interpreting ratios, conservation, and reference-table quantities correctly.
6After each practice set, sort missed questions by cause: chemistry concept, math setup, graph/table reading, or wording in the stimulus.

Frequently Asked Questions

What is the official current New York Regents Chemistry exam name?

The new official exam is the Regents Examination in Physical Science: Chemistry (NYSP12SLS). It is aligned to the New York State P-12 Science Learning Standards and debuts in June 2026.

How many questions are on the Physical Science: Chemistry Regents?

NYSED's educator guide lists 9-11 question clusters and 45-55 total questions. Approximately 60% of the test is multiple-choice and approximately 40% is constructed response.

How long is the NY Regents Chemistry exam?

Students are permitted three hours to complete the Regents Examination in Physical Science: Chemistry under standard administration conditions.

What score is passing on the Chemistry Regents?

Regents exams use scale scores rather than raw percentages, and a scale score of 65 is the general passing standard. The new science Regents also reports a performance level, with Level 3 indicating students minimally meet expectations for the Regents diploma content-area requirement.

Are reference tables provided for NY Regents Chemistry?

Yes. NYSED says the Reference Tables for Physical Science: Chemistry, 2025 Edition, should be used in classrooms beginning in the 2025-26 school year and first used on the June 2026 Regents Examination in Chemistry.

Are chemistry Investigations required?

Yes. NYSED states that successful completion of the Physical Science: Chemistry Investigations is required for admission to the exam, with successful completion determined locally. The Investigations do not contribute to the final Regents score, but related performance expectations account for about 15% of written-test questions.