Question breakdown in Preparing and Testing a Deicing Brine (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 · 106
| Questions | Cluster & Topics | Format | Practice |
|---|---|---|---|
| 1–5 | Potassium-40 Decay in RocksPotassium-40 in rocks and potash fertilizer: nuclear decay equations, nuclear vs chemical energy, and valence electronsNuclear chemistry · Periodic patterns · Engineering design (HS-PS1-8, HS-PS1-1, HS-ETS1-1) | 3 MC, 2 CR | Practice cluster |
| 6–10 | Magnesium for a Lightweight Tool HousingA magnesium alloy drill housing: Group 2 trends, ionic formulas, alloy structure, and water beading on coatingsPeriodic 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 | Gas in a Rising Lift BagA diver's lift bag and a CO₂-producing reaction: gas laws and temperature, molar volume at STP, and specific heatGases · Stoichiometry and conservation · Thermochemistry (HS-PS1-9, HS-PS1-7, HS-PS3-1) | 3 MC, 2 CR | Practice cluster |
| 21–25 | Comparing Two Vinegar SamplesDiluting and titrating two vinegars: pH and hydronium ions, acids and bases, and how dilution changes freezing pointAcids and bases · Solutions (HS-PS1-11, HS-PS1-10) | 3 MC, 2 CR | Practice cluster |
| 26–30 | Catalytic Conversion of Carbon Monoxide in ExhaustA catalytic converter test stand: potential energy diagrams, catalysts and temperature in rate, 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 | Hydrogen from Methane and SteamSteam-methane reforming designs: adding steam at equilibrium, mass stoichiometry, bond energy trends, catalyst pelletsEquilibrium · 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 | Moving Copper Between ElectrodesTwo copper strips in CuSO₄: half-reactions, the electron path, oxidation numbers, and water near Cu²⁺ and SO₄²⁻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 | Moving Heat Through a Sealed PipePicking a heat pipe's working liquid: intermolecular forces and vapor pressure, specific heat, and parts per millionIntermolecular 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 | Lettuce Under Adjustable LED LampsLettuce glowing red under blue LEDs: classifying radiation, electron energy levels, and photon energy at two settingsElectromagnetic radiation · Photosynthesis · Engineering design (HS-PS4-4, HS-LS1-5, HS-ETS1-2) | 3 MC, 2 CR | Practice cluster |
Frequently asked questions
- How is Preparing and Testing a Deicing Brine · Chemistry Practice Examination · 106 Chemistry Regents Cluster (Q16–Q20) structured on All Regents?
- Road salt in meltwater and brine: percent by mass, parts per million, and silver chloride precipitation stoichiometry. Practice the Preparing and Testing a Deicing Brine phenomenon cluster (Q16–Q20: 3 MC, 2 CR) from Chemistry Practice Examination · 106 (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.