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Spring Final Review

Total questions: 84

Worksheet time: 2hrs 2mins

Name
Class
Date
1.

Select the consequences of climate change.

a)

Ocean levels rising

b)

more severe storms

c)

Less greenhouse gases

d)

More severe droughts

e)

more solar radiation

2.

Select evidences for climate change.

a)

ocean level rising

b)

less arctic ice sheets

c)

more earthquakes

d)

longer summers

e)

less food production

3.

Which of the following atmospheric gasses are considered greenhouse gasses? Select ALL that apply.

a)

Water (H2O)

b)

Carbon Dioxide (CO2)

c)

Oxygen (O2)

d)

Methane (CH4)

e)

Nitrogen (N2)

4.
What is the greenhouse effect?
a)

The warming of a planet due to trapped radiation.

b)

The cooling of Earth due to air pollution.

c)

The heating of a solid, such as a rock.

5.

Which of these is a reason that carbon dioxide is increasing?

a)

Photosynthesis

b)

Dissolving in oceans

c)

Burning fossil fuels

d)

Trapped in sedimentary rocks

6.

Identify different types of climate feedback. Select all that apply.

a)

Albedo

b)

Methane Hydrates

c)

Severe weather

d)

Increased Evaporation

e)

Melting Glaciers

7.
What is the molar mass of C6H12O6?
a)

180 g/mol

b)

150 g/mol

c)

220 g/mol

d)

105 g/mol

8.

Using the following equation: Fe2O3 + 3H2 → 2Fe + 3H2O

How many moles of iron can be made from  6 moles H2? 

a)

4 moles Fe

b)

6 moles Fe

c)

9 moles Fe

d)

2 moles Fe

9.
2H2   +   O2  →  2H2O
How many moles of water can be produced if 8 moles H2 are used?
a)

4 moles

b)

8 moles

c)

16 moles

d)

2 moles

10.
2Al + 3H2SO4 -> Al2(SO4)3 + 3H2
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
a)
0.85 g
b)
290 g
c)
450 g
d)
870 g
11.

Which of the following is a diatomic element?

a)

NaF

b)

CO2

c)

N2

d)

H2O

12.

What type of reaction is this?

2 C6H14 + 19 O2 → 12 CO2 + 14 H2O

a)

Single Replacement

b)

Double Replacement

c)

Combustion

d)

Decomposition

13.

Predict the products for the this Single Replacement reaction:

K + HCl →

a)

KCl + H2

b)

KHCl

c)

KH + Cl2

d)

HCl + K2

14.

What type of reaction occurs between an element and a compound?

Zn + 2HCl --> ZnCl2 + H2

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

15.

According to the law of conservation of mass, matter cannot be created or (a)  

16.
Is the following equation balanced?...
Al + O2 --> 2Al2O3
a)
Yes!
b)
No!
17.
Which of the following reactions is balanced?
a)
2CH4 + O2 -> CO2 + H2O
b)
CH4 + 2O2 -> CO2 + H2O
c)
CH4 + 2O2 -> CO2 + 2H2O
d)
None of the chemical equations are balanced.
18.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
19.

Identify the following chemical reaction.

2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH

a)

Synthesis (or combination)

b)

Decomposition

c)

Single displacement

d)

Double displacement

20.

Identify the following chemical reaction.

Pb + FeSO4 ----> PbSO4 + Fe

a)

Synthesis (or combination)

b)

Decomposition

c)

Single displacement

d)

Double displacement

21.

What reaction has the following general formula:

AB --> A + B

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

22.

What reaction has the following general formula:

A + CD --> C + AD

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

23.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

24.

What reaction has the following general formula:

A + B --> AB

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

25.

Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?

a)

Decomposition

b)

Synthesis

c)

Combustion

d)

Single Replacement

26.
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
a)
the product is doubled
b)
the product is half the mass of the reactants
c)
the mass is the same
d)
the mass changes depending on the reaction
27.

48.86 g of cobalt is equal to how many moles of cobalt?

a)

2879 moles

b)

8.291 moles

c)

.8291 moles

d)

.829 moles

28.

How many molecules of water are in a 821.3 g sample?

a)

45.58 molecules

b)

8.232 x 1025 molecules

c)

8.909 x 1027 molecules

d)

2.744 x 1025 molecules

29.

Transition from a liquid to a gas

a)

Condensation

b)

Freezing

c)

Evaporation

d)

Melting

30.

Gas condenses to a liquid

a)

Evaporation

b)

Melting

c)

Freezing

d)

Condensation

31.

What happens to molecules when their kinetic energy increases?

a)

The molecules move slower

b)

The molecules move faster

c)

The molecules get heavier

d)

It depends on the type of molecule

32.

When you boil water in a pot, some of the water escapes as steam. Which of the following choices explains what is happening with the water molecules in this scenario?

a)

The molecules slow down as the kinetic energy increases and move farther apart from one another.

b)

The molecules slow down as the kinetic energy decreases and move closer together.

c)

The molecules speed up as the kinetic energy increases and the molecules move farther apart from one another.

d)

The molecules speed up as the kinetic energy decreases and the molecules move closer together.

33.

Is the substance gaining or losing energy?

a)

Gaining

b)

Losing

34.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

35.

What is happening to the particles in the substance between points A and B?

a)

Melting

b)

Freezing

c)

Speeding Up

d)

Slowing Down

36.

What is happening to the particles in the substance between points D and E?

a)

Melting

b)

Freezing

c)

Vaporizing

d)

Sublimating

37.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

38.
Between which points is the temperature of the substance remaining constant?
a)
A-B only. 
b)
A-B, C-D, E-F
c)
B-C only. 
d)
B-C, D-E
39.
The graph shows a cooling curve for an unknown substance.  What is happening during segment DE?
a)
boiling
b)
condensation
c)
freezing
d)
melting
40.
What is a solvent
a)
the liquid in which a solute is dissolved to form a solution.
b)
Another word for solution
c)
A thing that make drinks turn colors
d)
Its a metal molecole
41.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
42.
Which of the following would increase the (gas) pressure of a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
43.

How many moles of KNO3 must be dissolved in water to make 1.5 L of a 2.0 M solution?

a)

1.3 mol KNO3

b)

.75 mol KNO3

c)

1 mol KNO3

d)

3 mol KNO3

44.

What is the molarity of 2.0 L of an aqueous solution that contains 0.5 mole of potassium iodide

a)

1.0 M

b)

4.0 M

c)

0.25 M

d)

1.5 M

45.

Bases have a pH of

a)

7

b)

Less than 7

c)

More than 7

46.
Ocean acidification begins with 
a)
pollution from ships
b)
carbon dioxide released from combustion
c)
dumping of waste from cities into the ocean
47.
Carbon dioxide and seawater combine to form
a)
calcium carbonate
b)
carbon monoxide
c)
carbonic acid 
48.
Marine organisms make their shells from calcium and
a)
chloride
b)
carbonate
c)
seawater
49.
Very slight increases in the acidity of seawater __________  marine organisms that make shells.
a)
doesn't bother
b)
has no effect on 
c)
is unhealthy and stresses
50.
The H+ ion is a(n)
a)
acid
b)
base
c)
neutral
51.

Which molecule makes water acidic?

a)

Carbonate Ions

b)

Carbon Dioxide

52.
As the ocean becomes more acidic, the pH of the water
a)
increases
b)
decreases
53.

What do some marine creatures do with the carbonate ion?

a)

use it as a food source

b)

use it as a defense mechanism

c)

use it to build shells and exoskeletons

d)

use it to cool body temperatures

54.
N2 +  3H2 → 2NH3 
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
a)

6 mol H

b)

2 mol H

c)

3 mol H

d)

1 mol H

55.

What is the name of Li3P?

a)

Trilithium phosphide

b)

Lithium (III) phosphide

c)

Lithium phosphate

d)

Lithium phosphide

56.

What is the name for Na2S?

a)

Sodium sulfide

b)

Sodium sulfate

c)

Sodium sulfite

d)

Disodium sulfide

57.

What is the formula for Zinc (II) fluoride?

a)

ZnF2

b)

ZnF

c)

Zn2F

d)

Zn2F4

58.

Predict the products for the this Double Replacement reaction:

AgNO3 + KCl →

a)

AgCl + KNO3

b)

AgK + ClNO3

c)

KAg + NO3Cl

d)

AgCl + 3 KNO

59.

According to the law of conservation of mass, matter cannot be created or (a)  

60.

Use the following BALANCED chemical equation to determine the ratio:
2HgO → 2Hg + O22HgO\ \rightarrow\ 2Hg\ +\ O_2   
What is the ratio of HgO to Hg

a)

2:2

b)

1:1

c)

2:1

d)

1:2

61.

Use the following BALANCED chemical equation to determine the ratio:
4NH3+6NO → 5N2+6H2O4NH_3+6NO\ \rightarrow\ 5N_2+6H_2O   
What is the ratio of  NH3NH_3   to  NONO  

a)

4:5

b)

1:1

c)

2:3

d)

4:6

62.

How many molecules of water are in a 821.3 g sample?

a)

45.58 molecules

b)

8.232 x 1025 molecules

c)

8.909 x 1027 molecules

d)

2.744 x 1025 molecules

63.

How many moles of sodium chloride are in a 321.8 g sample?

a)

18810 moles

b)

3.315 x 1024 moles

c)

5.507 moles

d)

4.767 moles

64.

What is the greenhouse effect?

a)

Gases in the atmosphere trap the heat from the sun.

b)

Gases cannot escape the atmosphere.

c)

Gases in pollution damage trees.

d)

Gases in the atmosphere make plants grow faster.

65.

In a chemical reaction, 4 grams of sodium must combine with how many grams of chlorine to produce 10 grams of table salt?

a)

4 grams

b)

6 grams

c)

8 grams

d)

10 grams

66.

22.7 grams of Phosphorous reacts with oxygen to form 28.5 grams of Phosphorous Pentoxide. How much oxygen was used in this reaction?

(a)  

67.

B2H6 + 3O2 -->2 HBO2 + 2 H2O
 What mass of O2 will be needed to burn 20.0 g of B2H6 ?

a)
13.8 g O2
b)
3.86 mol of O2
c)
124 g O2
68.

How many moles of water are in this equation?

a)

0

b)

1

c)

2

d)

can't be determined

69.

What happens to molecules when their kinetic energy increases?

a)

The molecules move slower

b)

The molecules move faster

c)

The molecules get heavier

d)

It depends on the type of molecule

70.

Three containers with the same amount of the same material are shown below. Which container has the substance with the highest amount of energy?

a)

The container on the left

b)

The middle container

c)

The container on the right

d)

All have an equal amount of energy

71.

When you boil water in a pot, some of the water escapes as steam. Which of the following choices explains what is happening with the water molecules in this scenario?

a)

The molecules slow down as the kinetic energy increases and move farther apart from one another.

b)

The molecules slow down as the kinetic energy decreases and move closer together.

c)

The molecules speed up as the kinetic energy increases and the molecules move farther apart from one another.

d)

The molecules speed up as the kinetic energy decreases and the molecules move closer together.

72.

A student inflates a balloon with helium then places it in the freezer. The student should expect

a)

the balloon's volume to increase

b)

the balloon's volume to decrease

c)

the balloon's moles to increase

d)

the balloon's moles to decrease

73.

A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which actions will increase the rate of solubility? Select all that apply

a)

Increase the temperature of the solution

b)

stirring the solute in the solution

c)

Decrease the particle size of the solute

d)

increasing the particle size of the solute

74.
Which of the following would increase the (gas) pressure of a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
75.

How do the particles move in a solid? Select all that apply.

a)

rotation

b)

translation

c)

vibration

d)

limited translation

76.

How do the particles move in a liquid? Select all that apply.

a)

rotation

b)

translation

c)

vibration

d)

limited translation

77.

How do the particles move in a gas? Select all that apply.

a)

rotation

b)

translation

c)

vibration

d)

limited translation

78.

How much energy is required to heat 23g of ice at -46°C to O°C?

a)

2,116 J

b)

7,685.7 J

c)

9,623.2 J

d)

50,738 J

79.

How much heat energy is required to melt 23g of ice at 0°C?

a)

2,116 J

b)

7,659 J

c)

9,623.2 J

d)

418.14 J

80.

How much energy is required to convert 100g of liquid water at 20°C completely to steam at 100°C?

a)

254,072 J

b)

70,581.04 J

c)

587,236 J

d)

258,168 j

81.

How much energy is required to change 23g of liquid water at 100°C to steam at 109°C?

a)

104,546 J

b)

42,520 J

c)

51,156.1 J

d)

89,544 J

82.

Neutral solutions have a pH of:

a)

0

b)

1

c)

7

d)

14

83.

Which is true?

a)

pH of less than 7 is basic; pH of more than 7 is acidic

b)

pH of less than 7 is acidic; pH of more than 7 is basic

84.

pH is the measure of the concentration of ______.

a)

Acids

b)

H+ ion

c)

OH- ion

d)

Bases

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