2. 7••..
instructions
1. Write the requited information on the title page of the Student Booklet.
2. This examination consists of two parts. Part A: 10 multiple-choice questions and
Part B: 10 constructed-response questions.
3. Answer all questions in the Student Booklet, showing all your work and units.
4. You are permitted to use writing instruments and a calculator with or without
graphic display designed mainly to perform mathematical calculations.
Before the exam starts, data and programs stored in the calculator’s memory
must be deleted.
Using a calculator containing stored data or programs will be considered as
cheating.
You may not share your calculator with other students. Communication in any form
between calculators is forbidden.
Other electronic devices that have a calculator function are strictly forbidden.
5. You may refer to the information provided in the Appendix of the Question
Booklet. The use of any other reference material is strictly forbidden.
6. Hand in the Question Booklet and the Student Booklet at the end of the
examination.
NOTE: Each question is worth four marks.
Figures are not necessarily drawn to scale, unless stated.
Significant figures will be evaluated in question 13.
Time. 2 HUL4i]
I
June20, 2017
Page 1
3. zzz _
_
_
_
_
PartA
Muftiple-Choice Questions I to 10
Answer all questions in your Student Booklet.
1. In Canada, microplastics (microbeads) have been added to a variety of personal care
products such as shampoos, facial cleansers and toothpaste, to enhance the product’s
scrubbing effect. These microplastics are not removed by waste water treatments and end
up in the freshwater systems.
Microplastics -can be ingested by aquatic organisms such as Atlantic mudsnails.
Which of the following statements refers to the toxicity threshold for microplastics
ingested by Atlantic mudsnails?
A) Microplastics, at a certain concentration, cause Atlantic mudsnails to die.
B) Microplastics can be transferred to higher trophic levels in higher concentrations.
.
C) Microplastics cause significant harmful effects oncereached.
D) Microptastics cause extreme stress on digestion such asenergy expenditure.
a certain concentration is
physical blockage and more
Secondary 4 SE, WQSB
Question Booklet ]un9fl )n7
4. 2. Pure white vinegar, with a concentration of 5 ¾ acetic acid, is used as a food preservative,
and as an ingredient to enhance recipes.
Pickling vinegar, with a concentration of 7 ¾ acetic acid, is used specifically for making
preserves such as homemade pickles.
Pickllng Vinegar
Omar decides to follow a food recipe that requires using pure white vinegar but only has
750 mL of pickling vinegar. He decides to dilute the pickling vinegar to the concentration of
pure white vinegar.
What is the maximum volume of pure white vinegar that Omar will be able to make?
A) 540mL
B) 1050mL
C) 10500mL
D) l5000mL
coridary 4 SE, WQSB
June 20, 2017
Page 3
.
.
5. -
—
—-—
———_
1
3. The terms endothermic and exothermic define whether heat is absorbed or released
during a chemical reaction.
Below is a list of endothermic and exothermic reactions.
Endothermic and Exothermic Reactions
1. CH(g) + 2 °2(g) CO2(g) + 2 H20(1) + 891 kJ
2. When hydrochloric acid, HCI, and sodium hydroxide, NaOH, are combined
together in a beaker, the temperature of the water increases by 5 °C.3. N2(g) + °2(g) + energy — 2 NO(g)
4. When ammonium chloride, NH4CI, dissociates in water, the temperature of the
water drops from 25 °C to 16 00.
.
Which of the following correctly identifies the ENDOTHERMIC reactions?A) Reactions 1 and 2
B) Reactions 2 and 3
C) Reactions 3 and 4
D) Reactions 2, 3, and 4
4. Substances may be classified as electrolytes under certain conditions.
Which of the following statements is FALSE?
A) Electrolytes dissociate in aqueous solutions.
B) Electrolytes involve bonds where electrons ate shared.
C) Electrolytes have atoms that transfer electrons to each other.
D) Electrolytes conduct electricity when dissolved in an aqueous solution.
Secondary 4 SE, WQSB
Question Booklet
6. ______________________J
5. Nomenclature is a set of rules that are used in chemistry to name and distinguish between
chemical compounds.
Below is a list of chemical compounds.
.
Aluminum chloride
Name of Chemical Compounds
Dinhtrogen pentoxide Calcium phosphate Ammonium hydroxide
Which of the following correctly matches the name of the chemical compounds with the
correct molecular formulas?
Aluminum chloride Dinitrogen pentoxide Calcium phosphate Ammonium hydroxide
A) AId3 N205 Ca3(P04)2 NH4OH
B) AICI N502 Ca(P04)2 (NH4)20H
C) AlCl3 N205 Ca(P04)2 NH4OH
D) AICI N502 Ca3(P04)2 (NH4)20H
-
-i--”
A QIZ
June 20, 2017
Page 5
.
I
7. .
6. Horseshoes are made of different metals and are shaped using high temperatures.
To solidify the metal, horseshoes are dipped into water to rapidly cool them.
A horseshoe was heated to 452 °C. It was then dipped into 0.50 kg of water at a
temperature of 22 °C, as illustrated below.
Horseshoe Shaping
What was the final temperature of the water?
A) 1.2°C
B) 23.2 °C
C) 453.2 °C
D) 1200°C
Secondary 4 SE, WQSB
Question Booklet ‘)fl17
After the horseshoe was removed from the water, the temperature of the water had
increased and the water had absorbed 2514 J of energy.
8. —
7. Calcium is a common grey metal found in the alkaline earth metal group on
table. It may be represented by the simplified atomic model.
the periodic
4Op
8 e8 e
2 e
Rrnndarv 4 SE, WQSB
June 20, 2017
Page 7
Which of the following simplified atomic models correctly represents calcium?
)
C)
2e
9. I
8. Water pollution can be caused by runoff of excessive organic and inorganic nutrients. This
causes rapid and dense growth of plant life. It also decreases the concentration of oxygen
dissolved in water, resulting in the death of animal life.
What is the name of this process?
A) Bioconcentration
B) Bioaccumulation
C) Biomagnification
D) Eutrophication
Runoff of Excessive Nutrients
Secondary 4 SE, WQSB
Question Booklet
June 20. 2017
Page8
10. 9. Used car and truck tires were once collected and held in large tire dumps before present-
day standards of recycling tires became mandatory by law. If these tires caught on fire,
they would burn very hot, turn into a liquid, and release smoke that carried toxic
chemicals.
The map of Canada below indicates the location of four cities where there have been tire
fires. An illustration of atmospheric circulation is also provided.
.
Map of Canada Atmospheric Circulation
Which of the following statements best describes what happened as a result of a tire fire?
A) Hagersville and Moncton were affected by a tire fire in Quebec City.
B) Quebec City and Saskatoon were affected by a tire fire in Moncton.
C) Saskatoon and Hagersville were affected by a tire fire in Quebec City.
D) Quebec City and Moncton were affected by a tire fire in Hagersville.
.
Secondary 4 SE, WQSB
Question Booklet
June 20, 2017
Page 9
.
LEGEND
t’ r., 9 Saskatoon, Saskatchewan
—
Hagerseite Ontario
9 Quebec City Quebec
0 koncton. New Brunswick
Fr a
-
I -.
:
11. 10. In northern regions of Quebec, there ate areas where the soil is permanently frozen. When
the temperature of the ground has been 0 °C or lower for at least two years, it is called
permafrost.
If the temperature rises above 0 °C, the permafrost thaws and methane, CH4, a
greenhouse gas, is released.
Permafrost Thawing
Methane released
0 into atmosphere
Permafrost
Methane stores
occur if large amounts of
Temperatures
Sea Levels Glaciersaround the Earth
A) Increase Increase Melt
B) Increase Decrease Melt
C) Increase Increase Remain the same
D) Decrease Decrease Remain the same
PartB
Constructed-Response Questions 11 to 20
Answer questions 1 1 to 20 in your Student Booklet, showing all work.
Secondary 4 SE, WQSB
Question Booklet
June 20, 2017
.lr,
Which of the following correctly identifies the consequences that could
methane were released from the thawing permafrost?
12. Appendix I
FORM ULAS
m C: concentration = mg Fg: gravitational force
C m: mass m: mass
V: volume g: gravitational field
intensity
C1 = C2V2 C: concentration = mgh E: gravitational
V: volume of solution potential energy
m: mass
g: gravitational
field intensity
h: height
W=AE W: work Ek =% my2 Ek: kinetic energy
E: variation rn: mass
in energy v: velocity
W FAd W: work Q = mcAT Q: quantity of heat
F torce m: mass
Ad: distance travelled c: specific heat
capacity
AT: change in
temperature
Appendix 2
QUANTITIES
NAME SYMBOL VALUE
Gravitational field intensity on Earth g 9.8 N/kg
Specific heat capacity for water c 4.19 ]/(g. °c)
.
![7••..
instructions
1. Write the requited information on the title page of the Student Booklet.
2. This examination consists of two parts. Part A: 10 multiple-choice questions and
Part B: 10 constructed-response questions.
3. Answer all questions in the Student Booklet, showing all your work and units.
4. You are permitted to use writing instruments and a calculator with or without
graphic display designed mainly to perform mathematical calculations.
Before the exam starts, data and programs stored in the calculator’s memory
must be deleted.
Using a calculator containing stored data or programs will be considered as
cheating.
You may not share your calculator with other students. Communication in any form
between calculators is forbidden.
Other electronic devices that have a calculator function are strictly forbidden.
5. You may refer to the information provided in the Appendix of the Question
Booklet. The use of any other reference material is strictly forbidden.
6. Hand in the Question Booklet and the Student Booklet at the end of the
examination.
NOTE: Each question is worth four marks.
Figures are not necessarily drawn to scale, unless stated.
Significant figures will be evaluated in question 13.
Time. 2 HUL4i]
I
June20, 2017
Page 1](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)