Why All Regents is the only platform that actually prepares you for the new Chemistry Regents
When NYSED launched Physical Science: Chemistry (NYSP12SLS) in June 2026, it did not merely shorten the old 85-question exam—it replaced standalone recall with 9–11 phenomenon clusters (45–55 questions total, 1 credit each, ~60% multiple choice and ~40% constructed response) and replaced the 12-page 2011 Reference Tables (Tables A–T) with a 4-page 2025 Edition booklet.
Most online Regents banks still hand students legacy Part A multiple-choice questions that require looking up electronegativity in 2011 Table S, solubility in Table G, or indicators in Table M—tables that no longer exist on your exam day. Other sites post raw PDF links or static blog summaries without an interactive workspace. All Regents was engineered from the ground up around the validated NYSP12SLS corpus:
- Every interactive input type on the real exam: Across the 113 official questions in our bank, you don’t just click A–D. You complete Support / Refute claim-evidence checkboxes with written justifications (14 official items), two-part and table-row selections (28 official items), on-canvas Lewis electron-dot and nuclear particle drawings, on-figure partial-charge (δ+, δ−) box labels, multi-dropdown chemical equation builders, and multi-step mathematical setups.
- Split-screen stimulus + 2025 Reference Tables + print-faithful booklet view: Keep the cluster’s reading, experimental data tables, and molecular diagrams pinned beside each question, or switch to the original printed NYSED booklet layout with one click.
- All 25 official NYSED clusters plus original full-length 50-question practice exams: Work the free 2025 NYSED sample clusters, rehearse on the released June 2026 and August 2026 papers, and continue onto full-length 10-cluster practice exams (Practice Exam A, Practice Exam B) authored to the exact NYSP12SLS blueprint.
How the Chemistry Regents actually changed: 6 real examples from our tests
Inspecting the actual clusters in our library shows why memorizing old Part A definitions is no longer enough—and how every question connects chemistry principles to a concrete phenomenon:
- Context-bridged modeling instead of direct formula prompts — June 2026 Cluster 3: Equilibria in the Blood (Q11–14): On the legacy exam, a question asked directly: “Draw a Lewis electron-dot diagram for a molecule of carbon dioxide.” In June 2026 Q12, the prompt never names CO2. It asks you to “Draw an electron-dot diagram to model the gas released from the liver cells into the plasma.” You first read the cluster’s biological gas-transport diagram and three coupled equilibrium equations to identify CO2, then draw the linear double-bonded Lewis structure on the canvas.
- Combining prose, stimulus tables, and Page 4 equations — June 2026 Cluster 5: Urban Heat Islands (Q19–22) & 2025 Sample Cluster 1: Smartphone Chemistry (Q1–5): Because 2011 Table B (water’s heat constants) is gone, Page 4 of the 2025 Reference Tables provides only the equation
q = mcΔT. In June 2026 Q20 (“What amount of energy is absorbed when the temperature of a single brick increases from 20.°C to 35°C?”), you take the brick’s mass (2,700 g) from the reading passage, pull brick’s specific heat capacity (0.84 J/g·°C) from the cluster’s material-properties table, and calculate 34,000 J. In Smartphone Chemistry Q3, you combine the aluminum mass per phone from the passage with the Hall–Héroult reaction equation in the stimulus to calculate the grams of Al2O3 needed for 1,000 smartphones. - Filtering distractor data in Support / Refute claim-evidence tasks — June 2026 Cluster 2: Chemistry of Beverages (Q6–10) & August 2026 Cluster 11: Safe Transport of Drinking Water (Q44–48): Real clusters include realistic measurements you do not use in every question. In June 2026 Q8, a student claims an unopened 355-mL bottle stored on a warm shelf has less CO2 gas in the headspace than a refrigerated bottle. You ignore the unused bottling-pressure numbers in the table, check Refute, and explain that gas solubility in liquids decreases as temperature increases. In August 2026 Q46, the stimulus provides a table of both atomic radii and first ionization energies alongside a stainless-steel alloy diagram; you ignore the untested ionization-energy column and cite the atomic-radius data to identify carbon and explain how interstitial particles stiffen the iron lattice.
- On-diagram partial charges and intermolecular forces without 2011 Table S — June 2026 Cluster 11: Indoor Air Pollution (Q46–50) & August 2026 Cluster 9: Get a Whiff of That! (Q34–38): With 2011 Table S electronegativity numbers removed, qualitative periodic trends are expected course knowledge. In June 2026 Q50, you label four boxes (
δ+,δ−) directly on a molecular diagram of formaldehyde (CH2O) and water to show how solute and solvent dipoles align. In August 2026 Q36, you check a box to identify which essential oil has stronger intermolecular forces and cite experimental evaporation/vapor data from the cluster as evidence. - Multi-indicator acid-base logic without 2011 Table M — 2025 Sample Cluster 2: A Profitable Blueberry Field (Q1–5) & August 2026 Cluster 6: Pool Water Chemistry (Q22–25): Instead of looking up indicators in 2011 Table M, clusters supply custom indicator charts. In A Profitable Blueberry Field Q1, you select which pair of indicators from a 6-indicator table can work together to verify that soil pH stays within the 4.5–5.5 target window for blueberries. In August 2026 Q25, you read a full pool water report and complete a 4-row table identifying indicator colors across four samples.
- Engineering design (HS-ETS1) & cross-disciplinary storylines — August 2026 Cluster 10: Parade of Balloons (Q39–43) & 2025 Sample Cluster 3: Evaluating Gas Stoves (Q1–5): A single cluster can bridge multiple units. Parade of Balloons starts with noble-gas periodic group properties (Q39), evaluates engineering design criteria for choosing urethane-coated fabric over vinyl (Q40,
HS-ETS1-1), applies the combined gas law as a helium balloon rises and warms (Q41–42,HS-PS1-9), and finishes with the underground nuclear alpha decay of uranium-238 that produces helium on Earth (Q43,HS-PS1-8). In Evaluating Gas Stoves, you move from methane combustion (Q1–2) to a qualitative/quantitative policy claim (Q3), Page 2 electromagnetic-spectrum photon comparisons (Q4), and a 12-dropdown photosynthesis equation model (Q5,HS-LS1-5).
Start with the 3 official NYSED sample clusters (free, no sign-in)
These three 5-question sample clusters were published by NYSED to model the new exam’s stimulus design and rubric expectations. Read the complete 2025 Chemistry Sample Clusters guide →
Released 2026 exams and original full-length practice exams
The official Chemistry bank in All Regents includes all 113 official questions across 25 clusters released by NYSED so far, alongside our original full-length 50-question, 10-cluster practice exams.
| Paper | Questions & Clusters | Level 3 Passing (65) | Level 5 Mastery (85) | Guide & Clusters |
|---|---|---|---|---|
| June 2026 (June 9, 2026) | 50 questions · 11 clusters (29 MC, 21 CR) | 21 / 50 raw credits (42%) | 38 / 50 raw credits (76%) | June 2026 guide & clusters → |
| August 2026 (August 19, 2026) | 48 questions · 11 clusters (29 MC, 19 CR) | 21 / 48 raw credits (44%) | 36 / 48 raw credits (75%) | August 2026 guide & clusters → |
| 2025 NYSED Sample Clusters | 15 questions · 3 clusters (7 MC, 8 CR) | Free benchmark | Official rubric guide | 2025 sample clusters → |
| Chemistry Practice Exam A | 50 questions · 10 clusters (30 MC, 20 CR) | Full-length simulation | NYSP12SLS blueprint | Practice Exam A → |
| Chemistry Practice Exam B | 50 questions · 10 clusters (30 MC, 20 CR) | Full-length simulation | NYSP12SLS blueprint | Practice Exam B → |
| Practice Exam | Format | Sample Phenomenon Clusters Included | Workspace |
|---|---|---|---|
| Independent Chemistry Practice Examination A | 50 questions · 10 clusters | The Oklo Uranium Deposit · Gallium · Flying in Air That Is Barely There · Lithium Carbonate from Desert Brine · +6 more | Open exam |
| Independent Chemistry Practice Examination B | 50 questions · 10 clusters | Bomb Carbon in an Elephant Tusk · A Wire That Opens a Vent When It Warms · Filling a Hydrogen Storage Cylinder · Crystal Forms and Dissolving · +6 more | Open exam |
| Chemistry Practice Examination · 104 | 50 questions · 10 clusters | Tritium Exit Signs · Borosilicate Glass in the Laboratory · Gas in a Sealed, Flexible Bag Rising Through Water · Recovering Salts from Lake Brine · +6 more | Open exam |
| Chemistry Practice Examination · 105 | 50 questions · 10 clusters | Heat for a Spacecraft · Graphite and Diamond: Two Forms of Carbon · A Sealed Gas Bag Rising Through Water · Recovering Salts from Lake Brine · +6 more | Open exam |
| Chemistry Practice Examination · 106 | 50 questions · 10 clusters | Potassium-40 Decay in Rocks · Magnesium for a Lightweight Tool Housing · Gas in a Rising Lift Bag · Preparing and Testing a Deicing Brine · +6 more | Open exam |
| Chemistry Practice Examination · 113 | 50 questions · 10 clusters | Heat for a Spacecraft · Glass Through Temperature Changes · Storing Air for Later Use · Salt Left by the Water · +6 more | Open exam |
| Chemistry Practice Examination · 114 | 50 questions · 10 clusters | Self-Luminous Exit Sign Tubes · Graphite at a Moving Contact · A Lift Bag in Changing Pressure · From Fertilizer Crystals to Stock Solution · +6 more | Open exam |
| Chemistry Practice Examination · 115 | 50 questions · 10 clusters | Potassium and Argon in Rocks · A Lighter Protective Housing · Air in a Bicycle Pump · Preparing a Deicing Brine · +6 more | Open exam |
| Chemistry Practice Examination · 116 | 50 questions · 10 clusters | Power for a Shadowed Probe · Glass for Repeated Heating · Air Under Pressure · Salt from Brine · +6 more | Open exam |
| Chemistry Practice Examination · 117 | 50 questions · 10 clusters | Tritium Exit Markers · Carbon in a Sliding Contact · A Flexible Lift Bag · From Fertilizer Crystals to Stock Solution · +6 more | Open exam |
| Chemistry Practice Examination · 118 | 50 questions · 10 clusters | Potassium and the Record in Rock · A Lighter Protective Housing · A Flexible Bag Rising Through Water · Preparing a Deicing Brine · +6 more | Open exam |
Even if you only have 15 minutes, work one complete 4–5 question cluster from start to finish rather than jumping between isolated questions.
Official NYSED topic weights and laboratory eligibility
Every Physical Science: Chemistry Regents administration is a 3-hour exam where every question is worth 1 raw credit. To be eligible to sit for the exam, students must complete the state’s 1,200-minute hands-on laboratory requirement, including the 3 required NYSED Chemistry Investigations (Structure and Properties of Matter, Energy / Helpers, and Chemical Reactions).
| NYSP12SLS Topic | Performance Expectations | Exam Weight |
|---|---|---|
| Chemical Reactions | HS-PS1-2, HS-PS1-4, HS-PS1-5, HS-PS1-6, HS-PS1-7, HS-PS1-9, HS-PS1-10, HS-PS1-11, HS-PS1-12 | 36–46% |
| Structure and Properties of Matter | HS-PS1-1, HS-PS1-3, HS-PS1-8, HS-PS2-6 | 30–40% |
| Energy | HS-PS3-1, HS-PS3-2, HS-PS3-4 | 10–14% |
| Engineering, Technology, and Applications of Science | HS-ETS1-1, HS-ETS1-2, HS-ETS1-3, HS-ETS1-4 | 5–11% |
| Waves and Electromagnetic Radiation | HS-PS4-1, HS-PS4-3, HS-PS4-4 | 5–7% |
| Matter and Energy in Organisms and Ecosystems | HS-LS1-7, HS-LS2-4, HS-LS2-5 | 2–5% |
Because New York is offering both the new Physical Science: Chemistry exam and the legacy Physical Setting/Chemistry exam through June 2027, confirm your exact exam title before studying. Compare the new and legacy Chemistry Regents exams → · Read the 2025 Reference Tables guide →
Source: NYSED Physical Science: Chemistry Educator Guide (2025)
How Learn mode, Exam mode, and rubric self-review work
Work a phenomenon cluster
Every new-format Regents exam groups 45–55 questions into 9–11 clusters anchored by a shared reading, experimental table, graph, equation, or particle/system model.
Answer on-canvas, in tables, and in prose
Keep the cluster stimulus and the 2025 Reference Tables open beside the questions. Answer 1-credit multiple choice, check Support/Refute claim boxes, draw diagrams or particle models, label figures, and write out mathematical setups.
Score against the NYSED rating guide
Both Learn mode and Exam mode unlock scoring guides after you submit the full cluster. Multiple choice is graded automatically against the key; written responses and models use rubric-guided self-review.
In All Regents, both Learn mode and Exam mode reveal the answer key and rating guide only after you submit the entire cluster. Learn mode adds general strategy prompts while you work; Exam mode provides an uncluttered test-day interface, and the booklet view displays the original printed page layout.
Multiple-choice questions are checked automatically against the stored key. For constructed responses—explanations, mathematical setups with units, and electron-dot or particle diagrams—you compare your work against the question’s scoring rubric. Progress reports separate first-attempt accuracy from supported or repeated attempts and do not represent a predicted Regents score.
Frequently asked questions
- How many questions and clusters are on the new Physical Science: Chemistry Regents exam?
- According to the NYSED Physical Science: Chemistry Educator Guide, each exam contains 45–55 questions grouped into 9–11 phenomenon clusters (~60% multiple choice, ~40% constructed response, 1 raw credit per question, 3 hours total). The June 2026 exam had 50 questions across 11 clusters (29 MC, 21 CR), and the August 2026 exam had 48 questions across 11 clusters (29 MC, 19 CR).
- What topics are weighted most heavily on the new Chemistry Regents?
- Chemical Reactions accounts for 36–46% of the exam and Structure and Properties of Matter accounts for 30–40%. The remaining credits cover Energy (10–14%), Engineering, Technology, and Applications of Science (5–11%), Waves and Electromagnetic Radiation (5–7%), and Matter and Energy in Organisms and Ecosystems (2–5%).
- What is the laboratory requirement for the Physical Science: Chemistry Regents?
- Students must complete 1,200 minutes of hands-on laboratory experience, which must include all 3 required NYSED Chemistry Investigations (Structure and Properties of Matter, Energy / Helpers, and Chemical Reactions).
- What raw score is needed to pass (65) or earn mastery (85) on the new Chemistry Regents?
- On the June 2026 conversion chart (50 raw credits), 21/50 (42%) scaled to 65 (Level 3 passing), 32/50 (64%) scaled to 78 (Level 4 proficient), and 38/50 (76%) scaled to 85 (Level 5 mastery). On the August 2026 conversion chart (48 raw credits), 21/48 (44%) scaled to 65, 31/48 (65%) scaled to 78, and 36/48 (75%) scaled to 85.