Question breakdown in Acidity in a Yogurt Model (Q21–Q25)
| Question | Response Type | Topic | NYSP12SLS Standard | Action |
|---|---|---|---|---|
| Question 21 | 1-credit Multiple Choice (4 options) | Acids and bases | HS-PS1-11 | Solve in workspace → |
| Question 22 | 1-credit Constructed Response (rubric-scored) | Acids and bases | HS-PS1-11 | Solve in workspace → |
| Question 23 | 1-credit Multiple Choice (4 options) | Acids and bases | HS-PS1-11 | Solve in workspace → |
| Question 24 | 1-credit Constructed Response (rubric-scored) | Acids and bases | HS-PS1-11 | Solve in workspace → |
| Question 25 | 1-credit Multiple Choice (4 options) | Solutions | HS-PS1-10 | Solve in workspace → |
Other clusters in Chemistry Practice Examination · 116
| Questions | Cluster & Topics | Format | Practice |
|---|---|---|---|
| 1–5 | Power for a Shadowed ProbeRadioisotope power for a probe in long darkness: fission vs combustion, alpha decay, cross-linked insulation, Group 13Nuclear chemistry · Materials and structure · Periodic patterns · Engineering design (HS-PS1-8, HS-PS2-6, HS-PS1-1, HS-ETS1-1) | 3 MC, 2 CR | Practice cluster |
| 6–10 | Glass for Repeated HeatingBorosilicate beakers heated and rinsed: B vs Al trends, network covalent bonding, evaporation of three liquids, polarityPeriodic patterns · Bonding and formulas · Materials and structure · Intermolecular forces · Polarity and molecular structure (HS-PS1-1, HS-PS1-2, HS-PS2-6, HS-PS1-3, HS-PS3-5) | 3 MC, 2 CR | Practice cluster |
| 11–15 | Air Under PressureStored air in a syringe and a heated rigid bottle: Boyle's law, pressure vs temperature, O₂ in air at STP, specific heatGases · Stoichiometry and conservation · Thermochemistry (HS-PS1-9, HS-PS1-7, HS-PS3-1) | 3 MC, 2 CR | Practice cluster |
| 16–20 | Salt from BrineSolar-evaporated lake brine: making a percent-by-mass solution, a magnesium precipitation equation, decomposition massSolutions · Stoichiometry and conservation · Bonding and formulas (HS-PS1-10, HS-PS1-7, HS-PS1-2) | 3 MC, 2 CR | Practice cluster |
| 26–30 | A Stain and a CatalystProtease in laundry: activation energy from a potential energy table, temperature and rate, O₂ at STP, specific heatThermochemistry · Reaction rates · Stoichiometry and conservation (HS-PS1-4, HS-PS1-5, HS-PS1-7, HS-PS3-1) | 3 MC, 2 CR | Practice cluster |
| 31–35 | Refining an Ammonia ProcessHaber–Bosch design trade-offs: pressure and Le Châtelier's principle, Group 15 bond energy trends, NH₃ mass, catalystsPeriodic patterns · Stoichiometry and conservation · Equilibrium · Engineering design · Reaction rates (HS-PS1-1, HS-PS1-7, HS-PS1-6, HS-ETS1-3, HS-PS1-5) | 3 MC, 2 CR | Practice cluster |
| 36–40 | A Rechargeable Spacecraft BatteryHubble's nickel–hydrogen cells on discharge: half-reactions, oxidation numbers, metallic bonding, and water near Ni²⁺Oxidation and reduction · Materials and structure · Polarity and molecular structure (HS-PS1-12, HS-PS2-6, HS-PS3-5) | 3 MC, 2 CR | Practice cluster |
| 41–45 | Air Passing a Wet SurfaceEvaporative cooler pads: surface polarity, vapor pressure, heat of vaporization, percent by mass, and water around ionsIntermolecular forces · Thermochemistry · Solutions · Polarity and molecular structure (HS-PS1-3, HS-PS3-1, HS-PS1-10, HS-PS3-5) | 3 MC, 2 CR | Practice cluster |
| 46–50 | Light for an Orbital GardenSpace-garden lights without UV: photon energy by color, a glowing indicator's electrons, leaf reflectance, photosynthesisElectromagnetic radiation · Photosynthesis · Engineering design (HS-PS4-4, HS-LS1-5, HS-ETS1-2) | 3 MC, 2 CR | Practice cluster |
Frequently asked questions
- How is Acidity in a Yogurt Model · Chemistry Practice Examination · 116 Chemistry Regents Cluster (Q21–Q25) structured on All Regents?
- Milk with yogurt starter vs a control: pH and hydronium ions, Brønsted–Lowry acids, indicator ranges, boiling point. Practice the Acidity in a Yogurt Model phenomenon cluster (Q21–Q25: 3 MC, 2 CR) from Chemistry Practice Examination · 116 (Physical Science: Chemistry). Covers Acids and bases, Solutions (HS-PS1-11, HS-PS1-10) with the 2025 Reference Tables and scoring guide. Every question is worth 1 raw credit and pairs with the 2025 Edition Reference Tables, automatic multiple-choice key checking, and step-by-step constructed-response scoring guidance.
- Can I practice one phenomenon cluster at a time or sit the full exam?
- Yes. In the All Regents workspace you can launch any individual 4–6 question cluster in Learn mode (with strategy prompts) or sit the complete examination in Exam mode, then review every answer against the official-style scoring guide.