Question breakdown in Hydrogen Peroxide Decomposition (Q26–Q30)
| Question | Response Type | Topic | NYSP12SLS Standard | Action |
|---|---|---|---|---|
| Question 26 | 1-credit Multiple Choice (4 options) | Thermochemistry | HS-PS1-4 | Solve in workspace → |
| Question 27 | 1-credit Multiple Choice (4 options) | Reaction rates | HS-PS1-5 | Solve in workspace → |
| Question 28 | 1-credit Constructed Response (rubric-scored) | Reaction rates | HS-PS1-5 | Solve in workspace → |
| Question 29 | 1-credit Multiple Choice (4 options) | Stoichiometry and conservation | HS-PS1-7 | Solve in workspace → |
| Question 30 | 1-credit Constructed Response (rubric-scored) | Thermochemistry | HS-PS3-1 | Solve in workspace → |
Other clusters in Chemistry Practice Examination · 117
| Questions | Cluster & Topics | Format | Practice |
|---|---|---|---|
| 1–5 | Tritium Exit MarkersTritium exit markers for a dark room: polymers in a heat-resistant frame, beta decay and half-life, hydrogen isotopesMaterials and structure · Nuclear chemistry · Periodic patterns · Engineering design (HS-PS2-6, HS-PS1-8, HS-PS1-1, HS-ETS1-1) | 3 MC, 2 CR | Practice cluster |
| 6–10 | Carbon in a Sliding ContactGraphite for a sliding contact: carbon vs silicon trends, covalent formulas, mobile electrons, CO₂–water attractionPeriodic 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 | A Flexible Lift BagA sealed lift bag at constant temperature: Boyle's law graphs, CO₂ moles from baking soda, exothermic vs endothermicGases · Stoichiometry and conservation · Thermochemistry (HS-PS1-9, HS-PS1-7, HS-PS3-1) | 3 MC, 2 CR | Practice cluster |
| 16–20 | From Fertilizer Crystals to Stock SolutionPotassium nitrate stock solutions: percent by mass, molarity, a balanced decomposition, K₂CO₃ mass, carbonate solubilitySolutions · Stoichiometry and conservation · Bonding and formulas (HS-PS1-10, HS-PS1-7, HS-PS1-2) | 3 MC, 2 CR | Practice cluster |
| 21–25 | A Stone Surface in Acidic RainCalcite chips in acidified water: pH and hydronium ions, H₃O⁺ vs OH⁻, how acid dissolves calcite, dilution volumesAcids and bases · Solutions (HS-PS1-11, HS-PS1-10) | 3 MC, 2 CR | Practice cluster |
| 31–35 | What Leaves the Heated Limestone?Calcining limestone: Le Châtelier's principle, CO₂ volume at STP, Group 2 decomposition trends, CaO yield vs CO₂ captureEquilibrium · 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 Cell That Uses AirZinc-air cell with a carbon backing: oxygen reduction half-reaction, oxidation numbers, conducting carbon, water near K⁺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 | Recharging a Reusable Heat PackSodium acetate and solvent choice: polar vs nonpolar solvents, evaporation and attractions, specific heat, mass percentIntermolecular 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 | Lighting an Orbital Plant ChamberA plant chamber on a power budget: blue vs red photon energy, a glowing indicator patch, leaf absorption, 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 Hydrogen Peroxide Decomposition · Chemistry Practice Examination · 117 Chemistry Regents Cluster (Q26–Q30) structured on All Regents?
- MnO₂ and hydrogen peroxide: potential energy profiles, activation energy, mole ratios, and checking a heat-release claim. Practice the Hydrogen Peroxide Decomposition phenomenon cluster (Q26–Q30: 3 MC, 2 CR) from Chemistry Practice Examination · 117 (Physical Science: Chemistry). Covers Thermochemistry, Reaction rates, Stoichiometry and conservation (HS-PS1-4, HS-PS1-5, HS-PS1-7, HS-PS3-1) 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.