Question breakdown in Salt Left by the Water (Q16–Q20)
| Question | Response Type | Topic | NYSP12SLS Standard | Action |
|---|---|---|---|---|
| Question 16 | 1-credit Multiple Choice (4 options) | Solutions | HS-PS1-10 | Solve in workspace → |
| Question 17 | 1-credit Constructed Response (rubric-scored) | Solutions | HS-PS1-10 | Solve in workspace → |
| Question 18 | 1-credit Multiple Choice (4 options) | Stoichiometry and conservation | HS-PS1-7 | Solve in workspace → |
| Question 19 | 1-credit Constructed Response (rubric-scored) | Stoichiometry and conservation | HS-PS1-7 | Solve in workspace → |
| Question 20 | 1-credit Multiple Choice (4 options) | Bonding and formulas | HS-PS1-2 | Solve in workspace → |
Other clusters in Chemistry Practice Examination · 113
| Questions | Cluster & Topics | Format | Practice |
|---|---|---|---|
| 1–5 | Heat for a SpacecraftPu-238 power for a climate satellite: nuclear equations, cross-linked wire insulation, and helium's electron arrangementNuclear 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 Through Temperature ChangesBorosilicate glass warming water: boron vs aluminum trends, network covalent bonding, and liquid vs vapor waterPeriodic 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 | Storing Air for Later UseCompressed-air energy storage: Boyle's law, pressure vs temperature at fixed volume, the combined gas law, specific heatGases · Stoichiometry and conservation · Thermochemistry (HS-PS1-9, HS-PS1-7, HS-PS3-1) | 3 MC, 2 CR | Practice cluster |
| 21–25 | Acid Forms During FermentationLactic acid in a fermentation model: pH and hydronium ion concentration, proton donors and acceptors, and boiling pointAcids and bases · Solutions (HS-PS1-11, HS-PS1-10) | 3 MC, 2 CR | Practice cluster |
| 26–30 | A Stain and a CatalystA protease on a laundry stain: potential energy diagrams, temperature and collisions, mole ratios, and 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 ammonia: removing product from equilibrium, mole ratios, Group 1 trends for promoters, and catalystsEquilibrium · Stoichiometry and conservation · Periodic patterns · Engineering design · Reaction rates (HS-PS1-6, HS-PS1-7, HS-PS1-1, HS-ETS1-3, HS-PS1-5) | 3 MC, 2 CR | Practice cluster |
| 36–40 | A Rechargeable Spacecraft BatteryHubble's nickel–hydrogen batteries: half-reactions, oxidation numbers, energy conversion, and water near K⁺ ionsOxidation 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 coolers: boiling points and intermolecular forces, heat lost by cooling air, mass percent, hydrogen bondingIntermolecular 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 GardenChoosing red and blue lamps for space lettuce: wavelength and frequency, classifying radiation, and photon energyElectromagnetic radiation · Photosynthesis · Engineering design (HS-PS4-4, HS-LS1-5, HS-ETS1-2) | 3 MC, 2 CR | Practice cluster |
Frequently asked questions
- How is Salt Left by the Water · Chemistry Practice Examination · 113 Chemistry Regents Cluster (Q16–Q20) structured on All Regents?
- Concentrating lake brine in the sun: percent by mass, dissociation equations, gas volume at STP, carbonate precipitates. Practice the Salt Left by the Water phenomenon cluster (Q16–Q20: 3 MC, 2 CR) from Chemistry Practice Examination · 113 (Physical Science: Chemistry). Covers Solutions, Stoichiometry and conservation, Bonding and formulas (HS-PS1-10, HS-PS1-7, HS-PS1-2) 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.