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Chemistry Course Review

Total questions: 100

Worksheet time: 1hrs 14mins

Name
Class
Date
1.

The volume of air near Earth’s surface is mostly...

a)

Argon

b)

Oxygen

c)

Nitrogen

d)

Other gasses

2.

Why is it difficult to breathe at high altitudes?

a)

The temperature increases

b)

Less oxygen compared to other gasses

c)

The temperature decreases

d)

The atmosphere is less dense

3.

Choose the correct order to show how a convection current works in an atmospheric system.

a)

Low density gas is pushed up-->Particles move faster-->Particles move apart-->Low density gas is pushed up-->The air is heated

b)

Particles move faster-->Particles move apart-->The air is heated-->Low density gas is pushed up

c)

The air is heated-->Particles move faster-->Low density gas is pushed up-->Particles move apart

d)

The air is heated-->Particles move faster-->Particles move apart-->Low density gas is pushed up

4.

Density in solids and liquids is measured in...

a)

grams per liter

b)

grams per milliliter

c)

kilograms per milliliter

d)

kilograms per liter

5.

Density in gasses is measured in...

a)

grams per liter

b)

grams per milliliter

c)

kilograms per milliliter

d)

kilograms per liter

6.

The Base unit for Volume is...

a)

Milliliter

b)

Gram

c)

Grams per Milliliter

d)

Liter

7.

Water is lighter than air because...

a)

Well this is just crazy, water is not lighter than air

b)

Atomic mass determines the weight of a compound

c)

Water is heavier, that's why it rains!

d)

Water is a fundamental element so it weighs nothing

8.

Choose the correct statement.

a)

This substance has an average of two neutrons

b)

This substance has an average of four neutrons

c)

This substance has four protons

d)

This substance has an an average atomic mass of two

9.

Choose the correct statement.

a)

This substance has an average of two neutrons

b)

This substance has an average of four neutrons

c)

This substance has four protons

d)

This substance has an average atomic mass of three

10.

Choose the correct statement.

a)

This substance has twelve electrons

b)

This substance has an average of four neutrons

c)

This substance has 12 protons

d)

This substance has an atomic number of six

11.

This Meniscus reads __________, and is a ____________ meniscus.

a)

24 ml, Convex

b)

24 ml, Concave

c)

25 ml, Convex

d)

25 ml, Concave

12.

This Meniscus reads __________, and is a ____________ meniscus.

a)

29 ml, Convex

b)

29 ml, Concave

c)

29.5 ml, Convex

d)

29.5 ml, Concave

13.

This Meniscus reads __________, and is a ____________ meniscus.

a)

41 ml, Convex

b)

41 ml, Concave

c)

45 ml, Convex

d)

45 ml, Concave

14.

If r = 3 cm, what is d?

a)

3 cm

b)

6 cm

c)

3 ml

d)

6 ml

15.

If the volume of this object is 50 ml, and it has a mass of 25 grams, what is its density?

a)

0.2 g/ml

b)

2 g/ml

c)

5 g/ml

d)

0.5 g/ml

16.

Where are the Alkali Metals on the Periodic Table?

a)

Group 1

b)

Group 2

c)

Groups 3-12

d)

Groups 13-17

17.

Where are the Alkaline Metals on the Periodic Table?

a)

Group 1

b)

Group 2

c)

Groups 3-12

d)

Groups 13-17

18.

Where are the Transition Metals on the Periodic Table?

a)

Group 1

b)

Group 2

c)

Groups 3-12

d)

Groups 13-17

19.

Where are the nonmetals on the Periodic Table?

a)

Group 1

b)

Group 2

c)

Groups 3-12

d)

Groups 13-18

20.

If I am a group 14 element, how many valance electrons do I have?

a)

2

b)

4

c)

6

d)

8

21.

If I am a group 16 element, how many valance electrons do I have?

a)

2

b)

4

c)

6

d)

8

22.

If I am a group 18 element, how many valance electrons do I have?

a)

2

b)

4

c)

6

d)

8

23.

A group 1 element bonds with a group 17 element...

a)

This would never happen

b)

Covalent Bond

c)

Ionic Bond

d)

Metallic Bond

24.

A group 6 element (transition metal) bonds with another group 6 element...

a)

This would never happen

b)

Covalent Bond

c)

Ionic Bond

d)

Metallic Bond

25.

Typical Oxidation State for a group 13 element...

a)

3

b)

+3

c)

-3

d)

2

26.

Typical Oxidation State for a group 17 element...

a)

-1

b)

+1

c)

-2

d)

+2

27.

Typical Oxidation State for a group 2 element...

a)

-1

b)

+1

c)

-2

d)

+2

28.

An element with 92 protons goes through Alpha decay, the new atomic number is...

a)

93

b)

92

c)

90

d)

88

29.

An element with 92 protons goes through Beta decay, the new atomic number is...

a)

93

b)

92

c)

90

d)

88

30.

How many elements are in this formula? Mg(C2H3O2)2

a)

3

b)

4

c)

8

d)

15

31.

How many atoms are in this formula? Mg(C2H3O2)2

a)

3

b)

4

c)

8

d)

15

32.

The half life of Radium-226 is 1600 years. How much of a 4 gram sample will remain in 800 years?

a)

1 gram

b)

2 grams

c)

3 grams

d)

4 grams

33.

The half life of Sodium-24 is 15 hours. If 1 gram has decayed from a sample that was originally 2 grams, how old is the sample?

a)

15 hours

b)

30 hours

c)

45 hours

d)

7.5 hours

34.

Aluminum is a Period 3 Group 13 element. Which image shows the correct Bohr Model for Aluminum?

a)
b)
c)
d)
e)
35.

If a laboratory fire erupts, immediately

a)

notify your instructor.

b)

run for the fire extinguisher.

c)

throw water on the fire.

d)

open the windows.

36.

If you do not understand a direction or part of the lab procedure, you should

a)

figure it out as you do the lab.

b)

try several methods until something works.

c)

ask the instructor before proceeding.

d)

skip it and go on to the next part.

37.

You have been injured in the laboratory (cut, burn, etc.). First you should

a)

visit the school nurse after class.

b)

see a doctor after school.

c)

tell the science instructor at once.

d)

apply first aid at once.

38.

Horseplay or practical jokes in the laboratory are

a)

always against the rules.

b)

okay.

c)

not dangerous.

d)

okay if you are working alone.

39.

How many electrons are in this compound?

NO2+

a)

16

b)

20

c)

22

d)

23

40.

How many electrons are in this compound?

SO42-

a)

46

b)

48

c)

50

d)

52

41.

How many atoms are in this compound?

NO2+

a)

1

b)

2

c)

3

d)

4

42.

How many atoms are in this compound?

SO42-

a)

3

b)

4

c)

5

d)

6

43.

How many atoms are in this compound?

S2O32-

a)

3

b)

4

c)

5

d)

6

44.

How many electrons are in this compound?

S2O32-

a)

54

b)

56

c)

58

d)

60

45.

Group 13 ...

a)

Has 13 valence electrons

b)

Has 3 valence electrons

c)

Will not bond with Carbon

d)

is the noble gasses

46.

Group 17 ...

a)

Has 17 valence electrons

b)

Has 3 valence electrons

c)

Will not bond with Carbon

d)

is the Halogens

47.

Group 17 ...

a)

Typical Oxidation # is +1

b)

Typical Oxidation # is -1

c)

Typical Oxidation # is 0

d)

is not reduced in a chemical reaction

48.

Group 14 ...

a)

Alkali Metals

b)

Typical Oxidation # is -4

c)

has 2 valence electrons

d)

is always reduced in a chemical reaction

49.

How many elements?

KAl3Si3O10(OH)2

a)

5

b)

6

c)

8

d)

21

50.

What is the molecular mass of this compound?

SO42-

a)

5

b)

50

c)

96.06

d)

64.062

51.

What is the molecular mass of this compound?

NO2+

a)

15.999

b)

31.998

c)

46.005

d)

60.012

52.

Magnesium, a group 2 element, bonds with Fluorine, a group 17 element. What is the resulting chemical formula?

a)

MgF

b)

FMg

c)

MgF2

d)

F2Mg

53.

Al2+ bonds with Chlorine (a group 17 element). What is the resulting chemical formula?

a)

AlCl

b)

Al2Cl2

c)

ClAl2

d)

AlCl2

54.

Identify the Generic Synthesis Reaction.

a)

AC + BD → BC + AD

b)

A + B → AB

c)

BC + A → B + AC

d)

A + BC → B + AC

55.

Identify the Generic Double Replacement Reaction.

a)

AC + BD → BC + AD

b)

A + B → AB

c)

BC + A → B + AC

d)

A + BC → B + AC

56.

Identify the Generic Single Replacement Reaction.

a)

AC + BD → BC + AD

b)

A + B → AB

c)

BC + A → B + AC

d)

A + BC → B + AC

57.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
58.
What percent of carbon-14 would be left after 5730 years?
a)
100%
b)
75%
c)
50%
d)
25%
59.
What is the half-life of iodine-131?
a)
32 days
b)
8 days
c)
16 days
d)
24 days
60.
what's the half life of this substance?
a)
1 day
b)
2 days
c)
3 days
d)
4 days
61.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
4 half-lives
62.
After the third half-life, how much of the sample is left?
a)
1/2
b)
1/3
c)
1/16
d)
1/8
63.
What type of decay is being illustrated in following picture? 
a)
beta decay
b)
alpha decay 
64.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma 
d)
none
65.

A metal bonds with a nonmetal...

a)

Ionic Bond

b)

Covalent Bond

c)

Metallic Bond

d)

James Bond

66.

A nonmetal bonds with a nonmetal...

a)

Ionic Bond

b)

Covalent Bond

c)

Metallic Bond

d)

James Bond

67.

A metal bonds with a metal...

a)

Ionic Bond

b)

Covalent Bond

c)

Metallic Bond

d)

James Bond

68.

A Noble Gas bonds with a Metal and an Nonmetal...

a)

Bionic Bond

b)

Complex Covalent Bond

c)

Hydrogen Bond

d)

I don't think so

69.

When the temperature of a substance is changing...

a)

The mass is also changing

b)

The chemical formula is also changing

c)

The density of the substance is not changing

d)

The physical state of the substance is not changing

70.

The flat points on this graph show...

a)

Temperature changing while the physical state is not changing

b)

Temperature not changing while the physical state is changing

c)

The density of the substance changing

d)

The chemical identity of the substance changing

71.

Homogeneous or Heterogeneous?

a)

Homogeneous

b)

Heterogeneous

72.

Homogeneous or Heterogeneous?

a)

Homogeneous

b)

Heterogeneous

73.

Homogeneous or Heterogeneous?

a)

Homogeneous has the same properties at every point; it is uniform without irregularities. Heterogeneous consists of dissimilar or diverse elements.

b)

Heterogeneous has the same properties at every point; it is uniform without irregularities. Homogeneous consists of dissimilar or diverse elements.

74.

Homogeneous or Heterogeneous?

a)

Homogeneous

b)

Heterogeneous

75.

Homogeneous or Heterogeneous?

a)

Homogeneous

b)

Heterogeneous

76.
a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

77.

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

78.

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

79.

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

80.

Turns Red litmus Paper Blue and pH is 12...

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

81.

Turns Red litmus Paper Blue and pH is 9...

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

82.

Turns Blue litmus Paper Red and pH is 6...

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

83.

Turns Blue litmus Paper Red and pH is 1...

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

84.

You mix HCl (a strong acid) and NaOH (a strong Base)...

a)

Acidic

b)

Basic

c)

Neutral

d)

Some other fourth option

85.

You mix HCl (a strong acid) and NaOH (a strong Base)...

a)

---> HCl + NaOH

b)

---> NaCl + HOH

c)

---> NaCl + H2O

d)

Nothing happens

86.

At what temperature does this substance start melting?

a)

38

b)

70

c)

140

d)

190

87.

At what temperature does this substance start boiling?

a)

38

b)

70

c)

140

d)

190

88.

Which answer best describes the state of the substance at 8 minutes?

a)

Solid

b)

Liquid

c)

Gas

d)

Phase Change

89.

Which answer best describes the state of the substance at 4 minutes?

a)

Solid

b)

Liquid

c)

Gas

d)

Phase Change

90.

Which answer best describes the state of the substance at 20 minutes?

a)

Solid

b)

Liquid

c)

Gas

d)

Phase Change

91.

Choose the correct Bohr Model for Aluminum

a)
b)
c)
d)
92.

What is incorrect about this Bohr Model?

a)

The nucleus is formatted incorrectly

b)

It has the wrong number of valence electrons

c)

It has an incorrect number of total electrons

d)

The electrons are paired incorrectly

93.

What is incorrect about this Bohr Model?

a)

The nucleus is formatted incorrectly

b)

It has the wrong number of valence electrons

c)

It has an incorrect number of total electrons

d)

The electrons are paired incorrectly

94.

Choose the correct Bohr Model for Boron

a)
b)
c)
d)
95.

What is incorrect about this Bohr Model of Boron?

a)

The orbitals are filled incorrectly

b)

It has the wrong number of valence electrons

c)

It has an incorrect number of total electrons

d)

The electrons are paired incorrectly

96.

What is incorrect about this Bohr Model of Boron?

a)

The orbitals are filled incorrectly

b)

It has the wrong number of valence electrons

c)

It has an incorrect number of total electrons

d)

The electrons are paired incorrectly

97.

Choose the correct Bohr Model for Potassium

a)
b)
c)
d)
98.

What is incorrect about this Bohr Model of Potassium?

a)

The orbitals are filled incorrectly

b)

It has the wrong number of valence electrons

c)

It has an incorrect number of total electrons

d)

The second orbital is not full

99.

Choose the correct Bohr Model for Neon

a)
b)
c)
d)
100.

What is incorrect about this Bohr Model of Neon?

a)

The orbitals are filled incorrectly

b)

The nucleus is formatted incorrectly

c)

It has an incorrect number of orbitals

d)

The electrons are paired incorrectly

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