SCH4U GRADE 12 CHEMISTRY FINAL
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ Fission.
Answer: reaction that leads to split of atomic molecules
◍ Which pair of atoms would form an iconic bond?.
Answer: Ca and S
◍ electron.
Answer: one of the parts of an atom having a negative charge. Indivisible
particle with a charge of -1
◍ The functional group of the organic acids is the.
Answer: carboxyl group
◍ Chromate.
Answer: CrO₄²⁻
◍ What group consist of relatively simple polymer formed from monomer
double bonds between carbon atoms.
Answer: Vinyl polymers
◍ kinetic energy.
Answer: energy an object has because of its mass and velocity. Objects that
are not moving do not have this.
◍ What is a double-displacement reaction in which aqueous compounds
exchange ions to form an insoluble solid?.
Answer: d. precipitation reaction
◍ What is the amount concentration of solution prepared by dissolving 0.326
mol MgSO4 to make 175 mL solution.
, Answer: 1.86 more
◍ Perchlorate.
Answer: ClO₄⁻
◍ acid.
Answer: compound that gives off H+ ions in solution
◍ Also called the paraffin series.
Answer: Alkanes
◍ principal quantum number (n).
Answer: The number related to the amount of energy an electron has and
therefore describing which shell the electron is in
◍ The reactants are the starting materials in a reaction. TRUE or FALSE.
Answer: true
◍ The highest grade of coal is.
Answer: anthracite
◍ What is the equilibrium constant of the following reaction is at equilibrium,
CO = 0.309 mol/L, O2 = 0.152 mol/L and CO2 = 0.441 mol/L?2CO (g) +
O2 (g) <——-> 2 CO2 (g).
Answer: 13.4
◍ A chemical change always involves a change in the_______ of matter..
Answer: composition
◍ HCl.
Answer: Hydrochloric Acid, Strong Acid
◍ Study the reaction.H22SO44(l) + CaCO33(s) CO22(g) + H22O(l) +
CaSO44(aq)Which of the following would cause the equilibrium to shift,
producing more carbon dioxide gas?Select all that apply..
Answer: removing water from the systemadding CaCO33 to the
systemremoving carbon dioxide gas from the system
◍ When a freshly cut piece of sodium metal, Na, is dropped into a flask with
, chlorine gas, a violent reaction takes place creating a new compound. This
compound.
Answer: has properties that are totally unlike either NA or Cl
◍ What is the technique of determining an unknown solution's concentration
by adding a standard solution to it until the reaction is complete?.
Answer: c. titration
◍ Q98: What is the concentration of hydroxide in water at room temperature?
What is KvW? How is it related to pH?.
Answer: At zero degrees C the solubility / gram is 42.86 100g hv2OKvW =
The Ionic product for water and pH is a measure of the acidity.
◍ Average Atomic Mass.
Answer: AAM = Σ(fractional abundance × isotopic mass)
◍ A complete source of vegetarian protein is.
Answer: cereal grain, legume
◍ Methanol.
Answer: -Wood alcohol -potential gasoline additive
◍ Q51: Using equation c (CIv2 + NaOH --> NaCI + NaCIO + Hv2 O), how
many grams of water are formed from 32 liters of chlorine gas?.
Answer: Liter = 1000cm^3 1 Mole = 1000grams 31.25 grams
◍ Q68: Going from region A to region B (on sheet), is there an increase or
decrease in kinetic energy?.
Answer: Graph from study guideThere is a decrease
◍ Which concept of acids and bases defined acids, and basis by the ions
produced in an aqueous solution.
Answer: Arrhenius concept
◍ mass number.
Answer: the number of protons and neutrons in an atom
◍ Out of the total energy radiated by the sun, what percentage is radiated as
infrared radiation?.
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ Fission.
Answer: reaction that leads to split of atomic molecules
◍ Which pair of atoms would form an iconic bond?.
Answer: Ca and S
◍ electron.
Answer: one of the parts of an atom having a negative charge. Indivisible
particle with a charge of -1
◍ The functional group of the organic acids is the.
Answer: carboxyl group
◍ Chromate.
Answer: CrO₄²⁻
◍ What group consist of relatively simple polymer formed from monomer
double bonds between carbon atoms.
Answer: Vinyl polymers
◍ kinetic energy.
Answer: energy an object has because of its mass and velocity. Objects that
are not moving do not have this.
◍ What is a double-displacement reaction in which aqueous compounds
exchange ions to form an insoluble solid?.
Answer: d. precipitation reaction
◍ What is the amount concentration of solution prepared by dissolving 0.326
mol MgSO4 to make 175 mL solution.
, Answer: 1.86 more
◍ Perchlorate.
Answer: ClO₄⁻
◍ acid.
Answer: compound that gives off H+ ions in solution
◍ Also called the paraffin series.
Answer: Alkanes
◍ principal quantum number (n).
Answer: The number related to the amount of energy an electron has and
therefore describing which shell the electron is in
◍ The reactants are the starting materials in a reaction. TRUE or FALSE.
Answer: true
◍ The highest grade of coal is.
Answer: anthracite
◍ What is the equilibrium constant of the following reaction is at equilibrium,
CO = 0.309 mol/L, O2 = 0.152 mol/L and CO2 = 0.441 mol/L?2CO (g) +
O2 (g) <——-> 2 CO2 (g).
Answer: 13.4
◍ A chemical change always involves a change in the_______ of matter..
Answer: composition
◍ HCl.
Answer: Hydrochloric Acid, Strong Acid
◍ Study the reaction.H22SO44(l) + CaCO33(s) CO22(g) + H22O(l) +
CaSO44(aq)Which of the following would cause the equilibrium to shift,
producing more carbon dioxide gas?Select all that apply..
Answer: removing water from the systemadding CaCO33 to the
systemremoving carbon dioxide gas from the system
◍ When a freshly cut piece of sodium metal, Na, is dropped into a flask with
, chlorine gas, a violent reaction takes place creating a new compound. This
compound.
Answer: has properties that are totally unlike either NA or Cl
◍ What is the technique of determining an unknown solution's concentration
by adding a standard solution to it until the reaction is complete?.
Answer: c. titration
◍ Q98: What is the concentration of hydroxide in water at room temperature?
What is KvW? How is it related to pH?.
Answer: At zero degrees C the solubility / gram is 42.86 100g hv2OKvW =
The Ionic product for water and pH is a measure of the acidity.
◍ Average Atomic Mass.
Answer: AAM = Σ(fractional abundance × isotopic mass)
◍ A complete source of vegetarian protein is.
Answer: cereal grain, legume
◍ Methanol.
Answer: -Wood alcohol -potential gasoline additive
◍ Q51: Using equation c (CIv2 + NaOH --> NaCI + NaCIO + Hv2 O), how
many grams of water are formed from 32 liters of chlorine gas?.
Answer: Liter = 1000cm^3 1 Mole = 1000grams 31.25 grams
◍ Q68: Going from region A to region B (on sheet), is there an increase or
decrease in kinetic energy?.
Answer: Graph from study guideThere is a decrease
◍ Which concept of acids and bases defined acids, and basis by the ions
produced in an aqueous solution.
Answer: Arrhenius concept
◍ mass number.
Answer: the number of protons and neutrons in an atom
◍ Out of the total energy radiated by the sun, what percentage is radiated as
infrared radiation?.
