SCH3U GRADE 11 CHEMISTRY UNIT 2 TEST |
COMPLETE QUESTIONS AND WORKED
ANSWERS | ONTARIO VIRTUAL SCHOOL | 2026 .
70 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
SCH3U GRADE 11 CHEMISTRY UNIT 2 TEST | COMPLETE QUESTIONS AND WORKED ANSWERS |
ONTARIO VIRTUAL SCHOOL | 2026 .. It contains 70 carefully selected questions that reflect the most current
exam content and testing strategies. Each question is accompanied by a correct answer and a detailed rationale
that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 70 Questions
Foundations - Application - Sch3u Grade 11 Chemistry UNIT 2 Complete AND Worked Ontario Virtual
School 2026 Chemistry Undergraduate YEAR 1 / Advanced Placement
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Atomic Structure AND THE 1-12 Reaction, Partial, Solution, Pressure, Sample
Periodic Table
Chemical Bonding AND 13-24 Reaction, Solution, CELL Potential, Standard, RATE Constant
Molecular Geometry
Chemical Reactions AND 25-36 Metal, Sample, Calorimeter, Temperature, Combustion
Stoichiometry
THE MOLE Concept AND 37-48 Reaction, Equilibrium, Solution, Temperature, Major
Molar Calculations
Solutions AND Solubility 49-60 Reaction, Solution, Equilibrium, Change, Increase
Acids Bases AND PH 61-70 Reaction, Equilibrium, Initial, RATE LAW, Constant
TOTAL 70 All questions include answers and detailed rationales
, Section A - Atomic Structure AND THE Periodic Table
Q1.
A 1.00 L sample of gas at 25°C and 1.00 atm contains a mixture of N2, O2, and CO2 with
partial pressures 0.50 atm, 0.30 atm, and 0.20 atm respectively. If the mixture is passed
through a solution that absorbs all CO2, and the remaining gas is compressed to 0.500 L
at constant temperature, what is the total pressure of the remaining gas?
A. 1.60 atm B. 1.20 atm
C. 0.80 atm D. 2.00 atm
Correct: A - 1.60 atm
Rationale:After CO2 absorption, only N2 and O2 remain with total pressure 0.80 atm at 1.00
L. Using Boyle's law (P1V1 = P2V2) at constant T: P2 = (0.80 atm)(1.00 L)/(0.500 L) = 1.60
atm. Option B is initial total pressure; C is pressure without compression; D is if all gases
remained.
Q2.
In the reaction 2A + 3B -> C + 4D, the rate of formation of D is 0.80 mol/L-s. What is the
rate of consumption of A in mol/L-s?
A. 0.20 B. 0.40
C. 0.80 D. 1.60
Correct: B - 0.40
Rationale:Rate = (1/4)”[D]/”t = (1/2)”[A]/”t. Given ”[D]/”t = 0.80, rate = 0.20. Thus ”[A]/”t =
2 × 0.20 = 0.40. Option A is the overall rate, C is rate of D, D is inverse stoichiometry.
Q3.
A 25.0 mL sample of 0.100 M HCl is titrated with 0.100 M NaOH. What is the pH after
addition of 30.0 mL of NaOH?
A. 1.00 B. 7.00
C. 11.96 D. 12.36
Correct: D - 12.36
Rationale:Moles HCl = 0.00250, moles NaOH = 0.00300, excess OH- = 0.00050 mol in total
volume 55.0 mL = 0.0550 L, [OH-] = 0.00909 M, pOH = 2.04, pH = 11.96. Option C is pH
without correct volume, D is correct. Option B is equivalence point, A is initial acid.
Page 3
COMPLETE QUESTIONS AND WORKED
ANSWERS | ONTARIO VIRTUAL SCHOOL | 2026 .
70 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
SCH3U GRADE 11 CHEMISTRY UNIT 2 TEST | COMPLETE QUESTIONS AND WORKED ANSWERS |
ONTARIO VIRTUAL SCHOOL | 2026 .. It contains 70 carefully selected questions that reflect the most current
exam content and testing strategies. Each question is accompanied by a correct answer and a detailed rationale
that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 70 Questions
Foundations - Application - Sch3u Grade 11 Chemistry UNIT 2 Complete AND Worked Ontario Virtual
School 2026 Chemistry Undergraduate YEAR 1 / Advanced Placement
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Atomic Structure AND THE 1-12 Reaction, Partial, Solution, Pressure, Sample
Periodic Table
Chemical Bonding AND 13-24 Reaction, Solution, CELL Potential, Standard, RATE Constant
Molecular Geometry
Chemical Reactions AND 25-36 Metal, Sample, Calorimeter, Temperature, Combustion
Stoichiometry
THE MOLE Concept AND 37-48 Reaction, Equilibrium, Solution, Temperature, Major
Molar Calculations
Solutions AND Solubility 49-60 Reaction, Solution, Equilibrium, Change, Increase
Acids Bases AND PH 61-70 Reaction, Equilibrium, Initial, RATE LAW, Constant
TOTAL 70 All questions include answers and detailed rationales
, Section A - Atomic Structure AND THE Periodic Table
Q1.
A 1.00 L sample of gas at 25°C and 1.00 atm contains a mixture of N2, O2, and CO2 with
partial pressures 0.50 atm, 0.30 atm, and 0.20 atm respectively. If the mixture is passed
through a solution that absorbs all CO2, and the remaining gas is compressed to 0.500 L
at constant temperature, what is the total pressure of the remaining gas?
A. 1.60 atm B. 1.20 atm
C. 0.80 atm D. 2.00 atm
Correct: A - 1.60 atm
Rationale:After CO2 absorption, only N2 and O2 remain with total pressure 0.80 atm at 1.00
L. Using Boyle's law (P1V1 = P2V2) at constant T: P2 = (0.80 atm)(1.00 L)/(0.500 L) = 1.60
atm. Option B is initial total pressure; C is pressure without compression; D is if all gases
remained.
Q2.
In the reaction 2A + 3B -> C + 4D, the rate of formation of D is 0.80 mol/L-s. What is the
rate of consumption of A in mol/L-s?
A. 0.20 B. 0.40
C. 0.80 D. 1.60
Correct: B - 0.40
Rationale:Rate = (1/4)”[D]/”t = (1/2)”[A]/”t. Given ”[D]/”t = 0.80, rate = 0.20. Thus ”[A]/”t =
2 × 0.20 = 0.40. Option A is the overall rate, C is rate of D, D is inverse stoichiometry.
Q3.
A 25.0 mL sample of 0.100 M HCl is titrated with 0.100 M NaOH. What is the pH after
addition of 30.0 mL of NaOH?
A. 1.00 B. 7.00
C. 11.96 D. 12.36
Correct: D - 12.36
Rationale:Moles HCl = 0.00250, moles NaOH = 0.00300, excess OH- = 0.00050 mol in total
volume 55.0 mL = 0.0550 L, [OH-] = 0.00909 M, pOH = 2.04, pH = 11.96. Option C is pH
without correct volume, D is correct. Option B is equivalence point, A is initial acid.
Page 3
