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Chemistry Semester 2 Final Exam Review

Total questions: 90

Worksheet time: 6hrs 19mins

Name
Class
Date
1.

Is this reaction equilibrium or completion?


NaOH + H2O ➝ Na+ + OH– + H2O

a)

completion

b)

equilibrium

c)

cannot determine

2.

Is this reaction equilibrium or completion?


C5H5N + H2O ⇄ C5H5NH+ + OH–

a)

equilibrium

b)

completion

c)

cannot determine

3.

How will the reaction shift if the following stress is applied?


HEAT + NOCl ⇄ 2 NO + Cl2


Add NO

a)

shift forwards

b)

shift backwards

c)

no shift

4.

How will the reaction shift if the following stress is applied?


HEAT + NOCl ⇄ 2 NO + Cl2


Remove Cl2

a)

shift forwards

b)

shift backwards

c)

no shift

5.

How will the reaction shift if the following stress is applied?


HEAT + NOCl ⇄ 2 NO + Cl2


Decrease temperature

a)

shift forwards

b)

shift backwards

c)

no shift

6.

How will the reaction shift if the following stress is applied?


HEAT + NOCl ⇄ 2 NO + Cl2


Increase volume

a)

shift forwards

b)

shift backwards

c)

no shift

7.

Which of the following will shift a reaction at equilibrium backwards?

a)

add reactants

b)

remove products

c)

add products

d)

increase the volume

e)

remove reactants

8.

Which of the following will shift an exothermic reaction at equilibrium forwards?

a)

add reactants

b)

remove products

c)

add products

d)

decrease temperature

e)

increase temperature

9.

Which type of reaction results in an increase in temperature?

a)

exothermic

b)

endothermic

c)

isothermic

d)

antithermic

10.

Which type of reaction results in a decrease in temperature?

a)

exothermic

b)

endothermic

c)

isothermic

d)

antithermic

11.

Which type of reaction consumes energy as a reactant?

a)

exothermic

b)

endothermic

c)

isothermic

d)

antithermic

12.

Which type of reaction produces energy as a product?

a)

exothermic

b)

endothermic

c)

isothermic

d)

antithermic

13.

Which type of reaction does the energy diagram above represent?

a)

exothermic

b)

endothermic

c)

isothermic

d)

antithermic

14.

Which type of reaction does the energy diagram above represent?

a)

exothermic

b)

endothermic

c)

isothermic

d)

antithermic

15.

Gatorade is a mixture of flavoring dissolved in water. In this mixture the Gatorade powder is the...

a)

solute

b)

solvent

c)

solution

16.

Which control would you use to remove solution without changing the concentration of the solution?

a)

water spout

b)

solid shaker

c)

evaporation control

d)

drain

17.

Which controls would cause an increase in the concentration of a solution?

a)

water spout

b)

solid shaker

c)

evaporation control

d)

drain

18.

Using the water spout to add more solvent would cause the concentration of the solution to...

a)

increase

b)

decrease

c)

remain the same

19.

What is the new concentration of HBrO4 when 0.5 liters of a 10.0 M solution is diluted to 0.2 L?

a)

25 M

b)

0.01 M

c)

4 M

d)

1 M

20.

Which of the following statements are true for a reaction at equilibrium?

a)

The concentration of reactants and products are not changing.

b)

The reactants are turning into products at the same time as the products are turning into reactants.

c)

The amount of products is increasing.

d)

The temperature is not changing.

21.

Which of the following would cause the reaction to shift backwards?

a)

add more HSO4–

b)

decrease the temperature

c)

remove H3O+

d)

add more SO42–

22.

Which of the following would cause the reaction to produce more SO42–?

a)

add more HSO4–

b)

decrease the temperature

c)

remove H3O+

d)

add more SO42–

23.

What is the substance that gets dissolved?

a)

Solute

b)

Solvent

c)

Solution

d)

Concentration

24.

What is the substance that something dissolves in (usually liquid)?

a)

Solute

b)

Solvent

c)

Solution

d)

Concentration

25.

What is a homogeneous mixture of a solute and solvent?

a)

Solute

b)

Solvent

c)

Solution

d)

Concentration

26.

What is a way to measure the ratio of a solute in a solvent?

a)

Solute

b)

Solvent

c)

Solution

d)

Concentration

27.

What can be measured in units of ° C, °F, or K?

a)

Pressure

b)

Volume

c)

Temperature

28.

What can be measured in units of mL or L?

a)

Pressure

b)

Volume

c)

Temperature

29.

What can be measured in units of atm, kPa, torr, or mm Hg?

a)

Pressure

b)

Volume

c)

Temperature

30.

What happens to the pressure when there is an increase in volume?

a)

increases

b)

decreases

c)

stays the same

31.

What turns blue litmus paper red?

a)

Acid

b)

Base

c)

Neutral Substance

d)

Indicator

32.

What is cabbage juice and phenolphthalein?

a)

Acid

b)

Base

c)

Neutral Substance

d)

Indicator

33.

What has a pH greater than 7?

a)

Acid

b)

Base

c)

Neutral Substance

d)

Indicator

34.
What is a substance that is dissolved in another substance? 
a)
solution
b)
solute
c)
solvent
d)
compound
35.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
36.
The concentration of a mixture can be increased in which of the following ways?
a)
Heating the mixture
b)
Adding more water “solvent”
c)
Adding more powder “solute”
d)
Stirring the mixture
37.
A solution that is considered dilute would be....
a)
Dark in color
b)
Have a strong scent
c)
Have a large amount of solute
d)
Have a small amount of solute
38.
Kool-Aid - Powder, sugar, and water
Identify the solvent 
a)
water
b)
powder
c)
sugar
d)
powder and sugar
39.
Lemonade - Water, lemon juice, and sugar
Identify the solute
a)
water
b)
lemon juice
c)
sugar and lemon juice 
40.
When Koolaid mix is light colored and tastes watery it is a _______ solution.
a)
saturated 
b)
diluted
41.
When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.
a)
concentrated 
b)
Diluted
42.
At 40 oC and 50 g/l the solution of KCl would be:
a)
saturated
b)
supersaturated
c)
unsaturated
43.
At 40 oC and 50 g/l the solution of KCl in 200 g of water would be:
a)
saturated
b)
supersaturated
c)
unsaturated
44.
If the saturated solution of K2Cr2O7 was cooled from 80 to 60 oC, how much solute would fall out? 
a)
20 g
b)
40 g
c)
15 g 
d)
30 g
45.
A way to increase the amount of sugar dissolved in tea is to
a)
crush and cool
b)
crush and leave alone
c)
crush and heat
46.
Calculate the molarity of 25.0 grams of KBr dissolved in 0.75 L (hint: find moles convert to grams)
a)
0.280 M
b)
0.210 M
c)
33.3 M
47.
How many moles of solution will result when 15.0 L of H2SO4 is used to make a 0.20 M solution?
a)
75 moles
b)
7 moles
c)
3 moles
d)
0.013 moles
48.
Convert 3000 mL into L.
a)
3000 L
b)
300 L
c)
30 L
d)
3 L
49.
What is the molarity of a solution containing 8.0 moles of solute in 500 mL of solution?
a)
0.016 M
b)
16 M
c)
62.5 M
d)
0.063 M
50.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
51.
Which of the following is a base?
a)
orange juice
b)
water
c)
vinegar
d)
dishwashing detergent
52.
The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?
a)
3
b)
9
c)
7
d)
5
53.
Many cleaning solutions are bases. Which of the following is a property of most bases?
a)
feels slippery
b)
white color
c)
can only be liquid
d)
tastes sour
54.
Which type of ion does a base produce when it is dissolved in water?
a)
oxide
b)
oxygen
c)
hydrogen
d)
hydroxide
55.
Acid + base --> ?
a)
salt + hydrogen gas + water
b)
salt + carbon dioxide + water
c)
salt + water
d)
salt only
56.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
57.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
58.

What is the pH of a solution that has a [H+] ion concentration of 0.235 M

a)

.0235

b)

0.629

c)

11.6

d)

13.765

59.

What is the pOH a [OH-] solution with a concentration of .05 M ?

a)

1.3

b)

4.21

c)

9.79

d)

5.7

60.

If the H+ concentration is 0.00005 M, is the substance an acid , base or neutral?

a)

base

b)

acid

c)

neutral

61.

A substance has an [H+] concentration of 5.67 x 10 ^-13. Is the solution acidic, basic or neutral?

a)

acidic

b)

basic

c)

neutral

62.
What is the pH of a 1 x 10-8 M solution of HNO3?
a)
8
b)
6
c)
7
d)
7.5
63.
What is the pOH of a 1 x 10-8 M solution of HNO3?
a)
8
b)
6
c)
7
d)
7.5
64.
If the solution of HNO3 has a pH of 8 and a pOH of 6. Is it an acid, base, or neutral?
a)
acid
b)
base
c)
neutral
65.
What is the [H+] if the pH is 4.0?
a)
1.0 x 10-10  M
b)
1.0 x 10-4  M
c)
1.0 x 10-14  M
d)
1.0 x 10-7  M
66.
What is the pOH of a solution that has a pH of 2?
a)
10
b)
12
c)
14
d)
1
67.
Rate of chemical reaction means
a)
amount of product formed
b)
speed of reaction
c)
concentration of reacting particles
d)
combining reactants with products
68.
Which factors increase the rate of a reaction.
a)
increasing temperature
b)
increasing concentration
c)
increasing surface area
d)
all of these
69.
Increase in temperature of the reactants can do one of the following
a)
Slow collision frequency
b)
Allow less effective collision between the particles
c)
Neutralise the reaction
d)
increase collision between the particles thus increasing the rate.
70.
You add more bodies into a "mosh pit" to hope for more collisions.  You have increased-
a)
temperature
b)
concentration
c)
pressure
d)
catalyst
71.
To slow down a chemical reaction you will do one of the following:
a)
Place the reactants in hot water
b)
Place the products in ice bath
c)
Place the reactants in a ice bath
d)
Keep stirring the reactants with a stirring rod
72.

Which solution can turn phenolphthalein pink?

a)

Sodium hydroxide

b)

Vinegar

c)

Tomato

d)

Hydrochloric acid

73.

Which solution would turn litmus red?

a)

Potassium hydroxide

b)

Sodium chloride

c)

HNO3

d)

Ammonia

74.

Which of the set of pH paper depicts that the dipped solution is highly acidic?

(compare with the pH scale and find out)

a)
b)
c)
75.

A solution that does not show any colour change is

a)

acidic solution

b)

basic solution

c)

neutral solution

d)

none of these

76.

What equation is needed to solve this problem: A gas that has a pressure of 2 atm and a volume of 10 L.  What would be the new volume if the pressure was changed to 1 atm?

a)
P1/T1 = P2/T2
b)
P1V1 = P2V2
c)
V1/n1 = V2/n2
d)
PV = nRT
77.
What does Boyle's law relate to?
a)
Temperature and Volume
b)
Volume and Pressure
c)
Temperature and Pressure
78.
What type of relationship is Charles' Law?
a)
Inverse
b)
Direct
c)
Not enough information
d)
#goals
79.
True or False: Gases can be compressed. 
a)
True
b)
False
80.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
81.
What causes pressure?
a)
The walls of the container
b)
The vacuum in the container
c)
The collisions of the particles
d)
Atmospheric pressure acting on the outside walls
82.
If you push down the plunger of a bicycle pump the chamber's volume is decreased. When that happens pressure in the chamber increases and the air then rushes out of the pump and into your flat tire. What gas law does this represent?
a)
Charles's law
b)
Boyle's law
c)
Newtons laws
d)
Coulombs laws
83.
When a basketball is left outside in the cold it goes flat because the volume of air inside the ball has been reduced. What  gas law does this represent?
a)
Boyle's Law
b)
Charles's Law
84.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
85.
What is 0 Kelvin known as
a)
No such thing
b)
Very cold
c)
Freezing point of Water
d)
Absolute Zero
86.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
87.
If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature?
a)
204 K
b)
200 K
c)
2046 K
d)
2000 K
88.
If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L, what will the new pressure inside the piston be?
a)
1.75 atm
b)
1.8 atm
c)
1.3 atm
d)
1.29 atm
89.
Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 
a)
0 K 
b)
107 K 
c)
207 K 
d)
307 K 
90.
Which of the following is NOT a value for standard pressure?
a)
101.3 kPa
b)
760 mm Hg
c)
1 atm
d)
1 torr

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