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Chem Review Final Sem 1

Total questions: 122

Worksheet time: 3hrs 46mins

Name
Class
Date
1.

What determines the identity of an atom?

a)

number of protons

b)

number of electrons

c)

number of neutrons

d)

number of valence electrons

2.

The particles in an atom that are neutral (have no charge) are called __________.

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

3.
Protons have a _____ charge while electrons have a _____ charge.
a)
positive; negative
b)
negative; positive
c)
neutral; positive
d)
negative; neutral
4.

If a neutral atom has 3 electrons, how many protons does it have?

a)

7

b)

6

c)

4

d)

3

5.

An atom will be neutral (have no charge) if the number of protons is equal to the number of _____.

a)

protons

b)

neutrons

c)

electrons

d)

octets

6.

How many protons does an atom with an atomic number of 6 have?

a)

6

b)

12

c)

3

d)

cannot be determined

7.

What does the 1.00794 stand for?

a)

hydrogen

b)

atomic number

c)

atomic mass

d)

valence electrons

8.

What is the atomic mass for silicon?

a)

16

b)

32

c)

28

d)

14

9.

How many protons does Cu have?

a)

42

b)

29

c)

58

d)

25

10.

What is the atomic mass of copper?

a)

64

b)

29

c)

35

d)

63

11.
What charge will an atom have if it loses 2 electrons?
a)
+2
b)
-2
c)
0
d)
+1
12.
What charge will an atom have if it gains one electron?
a)
-1
b)
+1
c)
1
13.
An atom undergoes radioactive decay and its mass decreases from 138 to 134. What type of decay did the atom undergo?
a)
alpha
b)
beta
c)
gamma
d)
radioactive
14.
What does an atom lose when it undergoes alpha decay?
a)
2 protons and 2 neutrons
b)
a neutron becomes a proton
c)
2 protons
d)
an electron
15.

Which element is in period 1, group 8?

a)

Helium

b)

Hydrogen

c)

Neon

d)

Lanthanum

16.

Which element is in period 3, group 4?

a)

Silicon

b)

Gallium

c)

Carbon

d)

Germanium

17.
Which element in period 2 is the most reactive?
a)
Ne
b)
F
c)
Be
d)
N
18.
What charge will magnesium have once it reaches an octet?
a)
+2
b)
-2
c)
+12
19.
What charge will nitrogen have once it reaches an octet?
a)
-3
b)
+3
c)
-5
d)
+5
20.

Metals are found on which side of the stairs?

a)

left

b)

right

c)

along the stairs

21.

Which of the following is a nonmetal?

a)

Na

b)

Pb

c)

S

d)

Al

22.

What type of bond forms between nonmetals only?

a)

covalent

b)

ionic

c)

metallic

d)

metalloid

23.

What type of bond forms between H and Br?

a)

metallic

b)

ionic

c)

covalent

d)

metalloid

24.

What type of bond forms between Na and O?

a)

ionic

b)

covalent

c)

metallic

d)

metalloid

25.

Which of the following has a metallic bond?

a)

MgBr2

b)

PbI2

c)

CH4

d)

4 Mg

26.

Which of the following shows a metallic bond?

a)
b)
c)
d)
27.

Which of the following has an ionic bond?

a)
b)
c)
d)
28.

Which of the following have a covalent bonds?

a)
b)
c)
d)
29.

Rank the elements Mn, Ne, O, Si, and Sr from lowest to highest electronegativity.

a)

(low) Ne < Sr < Mn < Si < O (high)

b)

(low) Sr < Mn < Si < O < Ne (high)

c)

(low) O < Si < Mn < Sr < Ne (high)

d)

(low) Ne < O < Si < Mn < Sr (high)

30.

Which bond type has the largest difference in electronegativity between the two atoms involved?

a)

metallic bond

b)

covalent bond

c)

ionic bond

31.

What is the correct name for Mg2+?

a)

magnesium metal

b)

magnesium ion

c)

magnide

d)

magnesiumide

32.

What is the correct name for P3–?

a)

phosphorous ion

b)

phosphide

c)

phosphoride

d)

phosphorouside

33.

What is the name of the compound NaF?

a)

sodium fluoride

b)

sodium fluorine

c)

sodium monofluoride

d)

monosodium monofluoride

34.

What is the name of the compound P4H8?

a)

tetraphosphorous octahydride

b)

phosphorous hydride

c)

phosphorous hydrogen

d)

tetraphosphorous octahydrogen

35.

What is the name of the compound Ca3N2?

a)

tricalcium dinitrogen

b)

calcium nitride

c)

tricalcium trinitride

d)

calcium nitrogen

36.

What is the name of the compound PI3?

a)

phosphorous triiodide

b)

phosphorous triiodine

c)

monophosphorous triiodide

d)

monophosphorous triiodine

37.

What is the ionic formula of the compound formed between lithium and chlorine?

a)

LiCl

b)

Li1Cl1

c)

Li2Cl

d)

LiCl2

38.

What is the ionic formula of the compound formed between beryllium and fluorine?

a)

BeF2

b)

BeF

c)

Be2F

d)

Be3F2

39.

What is the ionic formula of the compound formed between aluminum and selenium?

a)

Al2Se3

b)

AlSe

c)

Al3Se2

d)

Al2Se

40.

Which bond type involves the stealing (transfer) of electrons?

a)

covalent

b)

metallic

c)

ionic

41.

Which bond type involves the sharing of electrons between two atoms?

a)

covalent

b)

metallic

c)

ionic

42.

Which bond type involves the sea of electrons?

a)

covalent

b)

metallic

c)

ionic

43.

Which bond is stronger?

a)

C=O

b)

C–O

44.

Which bond is stronger?

a)

S–H

b)

S–F

45.

What type of compound is 6 MgO?

a)

covalent

b)

ionic

c)

metallic

46.

What type of compound is 3 CH4?

a)

covalent

b)

ionic

c)

metallic

47.

What type of compound is 8 Be?

a)

covalent

b)

ionic

c)

metallic

48.

When atoms share valence electrons, a __________ bond is formed.

a)

covalent

b)

ionic

c)

metallic

49.

When atoms donate electrons to the sea of electrons, a __________ bond is formed.

a)

covalent

b)

ionic

c)

metallic

50.

When electrons are transferred between atoms, an __________ bond is formed.

a)

covalent

b)

ionic

c)

metallic

51.

What type of compound is shown above?

a)

covalent

b)

ionic

c)

metallic

52.

What type of compound is shown above?

a)

covalent

b)

ionic

c)

metallic

53.

What type of compound is shown above?

a)

covalent

b)

ionic

c)

metallic

54.

What is the correct formula for this compound?

a)

3 CH4

b)

C3H12

c)

CH4

d)

3 C4H

55.

What is the correct formula for this compound?

a)

Mg6O6

b)

6 MgO

c)

Mg2O2

d)

6 Mg6O6

56.

What is the correct formula for this compound?

a)

Be8

b)

Be2

c)

8 Be

d)

8 Be2+

57.

Which of the following have a low density?

a)
b)
c)
58.

Which of the following have a high density?

a)
b)
c)
59.

Which of the following are insoluble in water?

a)
b)
c)
60.

Which of the following have a high solubility in water?

a)
b)
c)
61.

Which of the following may or may not be soluble in water depending on the substance?

a)
b)
c)
62.

Which of the following can create electrolytes in water?

a)
b)
c)
63.

What is required in order for a substance to conduct electricity?

a)

free moving neutral atoms

b)

free moving charged particles

c)

protons

d)

electrons

64.

Which of the following can conduct electricity as a solid?

a)
b)
c)
65.

Which of the following cannot conduct electricity as a solid?

a)
b)
c)
66.

Which of the following will conduct electricity when dissolved in water?

a)
b)
c)
67.

Which substance in the table above is most likely a covalent compound?

a)

A

b)

B

c)

C

68.

Which substance in the table above would you use to make a phone-charging cable?

a)

A

b)

B

c)

C

69.

Which substance in the table above would become conductive when added to water?

a)

A

b)

B

c)

C

70.

Which substance in the table above could be used to make an oven-safe baking pan?

a)

A

b)

B

c)

C

71.

Round the following value to TWO significant figures:

0.00397

a)

0.0

b)

0.00

c)

0.0039

d)

0.0040

72.

Round the following value to THREE significant figures:

10.0920

a)

10.092

b)

10.09

c)

10.1

d)

10.0

73.

Which of the following correctly express the given value in scientific notation?

0.00034290

a)

3.4290 x 10-4

b)

3.4290

c)

3.4290 x 104

d)

0.34290 x 10-4

74.

Which of the following correctly express the given value in scientific notation?

6,902,000

a)

6.902 x 10-6

b)

6.902

c)

6.902 x 106

d)

69.02 x 106

75.

What type of bond involves the sharing of electrons between atoms?

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

transfer bond

76.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
77.
CO2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion 
d)
Metallic 
78.
NaCl
a)
Ionic
b)
Covalent
c)
Metallic
d)
Polyatomic Ion 
79.

Mixtures

a)

are made of more than one type of atom that are NOT bonded together

b)

are made of more than one type of atom that ARE bonded together

c)

are made of only only one type of atom

d)

are pure substances

80.

Compounds

a)

are made of more than one type of atom that are NOT bonded together

b)

are made of more than one type of atom that ARE bonded together

c)

are made of only only one type of atom

d)

are heterogeneous

81.

Chlorine has _ electrons

a)

17

b)

18

c)

35.45

d)

18.45

82.

Chlorine has _ neutrons

a)

17

b)

18

c)

35.45

d)

18.45

83.

Elements in a period (row) of the periodic table have this in common

a)

valence electrons

b)

electron shells

c)

proton shells

d)

electrons

84.

Elements in a family (column) of the periodic table have this in common

a)

valence electrons

b)

electron shells

c)

proton shells

d)

electrons

85.

An electron cloud is

a)

The number of electrons in a neutral atom

b)

The shared electrons in a plasma

c)

The pattern of electrons in a gaseous element

d)

The area where electrons are most likely to be found

86.

Atoms with 1 electron in their outer electron shells tend to

a)

form non-reactive gases

b)

form soft metals that react violently with water

c)

form brightly colored, highly reactive non-metals

d)

form many covalent bonds

87.

Atoms with 8 electrons in their outer electron shells tend to

a)

form non-reactive gases

b)

form soft metals that react violently with water

c)

form brightly colored, highly reactive non-metals

d)

form many covalent bonds

88.

I pour cream in my coffee. Which is the solute?

a)

cream

b)

coffee

c)

sugar

d)

salt

89.

I pour cream in my coffee. Which is the solvent?

a)

cream

b)

coffee

c)

sugar

d)

salt

90.

Which of the following is a chemical change?

a)

When I add blue food coloring, the water turns blue

b)

My shirt faded in the sun.

c)

Bubbles appear in my soda when I twist off the lid

d)

The lights turn on when I move the switch.

91.

Which of the following is a chemical change?

a)

The food in my refrigerator gets cold.

b)

It's colder at night than it is in the day.

c)

I mix two solutions and the flask gets cold.

d)

Water freezes at 0 C

92.

Atoms of the same element with different numbers of neutrons are called

a)

isotopes

b)

ions

c)

compounds

d)

elements

e)

impossible; this can't happen

93.

Atoms of the same element with different numbers of electrons are called

a)

isotopes

b)

ions

c)

compounds

d)

elements

e)

impossible; this can't happen

94.

Atoms of the same element with different numbers of protons are called

a)

isotopes

b)

ions

c)

compounds

d)

elements

e)

impossible; this can't happen

95.

Which of the following is balanced?

a)

CH4 + 4 Cl2 --> CCl4 + 4 HCl

b)

CH4 + Cl2 --> CCl4 + HCl

c)

CH4 + 2 Cl2 --> CCl4 + 4 HCl

d)

CH4 + 4 Cl2 --> 2 CCl4 + 2 HCl

96.

What are the reactants? HCl + Zn --> ZnCl2 + H2

a)

HCl + Zn

b)

ZnCl2 + H2

c)

Zn + ZnCl2

d)

HCl + H2

97.

What are the products? HCl + Zn --> ZnCl2 + H2

a)

HCl + Zn

b)

ZnCl2 + H2

c)

Zn + ZnCl2

d)

HCl + H2

98.

Balance the equation HCl + Zn --> ZnCl2 + H2

a)

2 HCl + Zn --> ZnCl2 + H2

b)

HCl + 2 Zn --> ZnCl2 + H2

c)

HCl + Zn --> 2 ZnCl2 + H2

d)

HCl + Zn --> ZnCl2 +2 H2

99.

How are isotopes different from each other?

a)

different number of protons

b)

different number of neutrons

c)

different number of electrons

d)

different number of ions

100.

To find the atomic mass

a)

find the protons

b)

add protons and neutrons

c)

subtract neutrons from protons

d)

subtract protons from neutrons

101.

To find the atomic number

a)

find the protons

b)

add protons and neutrons

c)

subtract neutrons from protons

d)

subtract protons from neutrons

102.

To find the number of protons

a)

use the atomic number

b)

use the atomic mass

c)

atomic mass - atomic number

d)

atomic number - atomic mass

103.

To find the number of neutrons

a)

use the atomic number

b)

use the atomic mass

c)

atomic mass - atomic number

d)

atomic number - atomic mass

104.

Ionic solids have

a)

High melting points and high boiling points

b)

Low melting points and low boiling points

c)

High melting points and low boiling points

d)

Low melting points and high boiling points

105.

Covalent solids have

a)

High melting points and high boiling points

b)

Low melting points and low boiling points

c)

High melting points and low boiling points

d)

Low melting points and high boiling points

106.

What do we call a pure substance made up of only one type of atom?

a)

Element

b)

Compound

c)

Molecule

d)

Mixture

107.

Which of the following could be classified as molecules?

a)

H2OH_2O

b)

H2H_2

c)

NaCl

d)

Salt Water

e)

Na

108.

Which phase of matter has a fixed volume but an unfixed shape?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

109.

Which of the following could be classified as a compound?

a)

H2OH_2O

b)

H2H_2

c)

NaCl

d)

Salt Water

e)

Na

110.

What do we call a pure substance made up of more than one type of atom?

a)

Element

b)

Compound

c)

Molecule

d)

Mixture

111.

How many protons are there in:

2040Ca+2_{20}^{40}Ca^{+2}  ?

a)

20

b)

40

c)

22

d)

18

112.

How many neutrons are there in:

2040Ca+2_{20}^{40}Ca^{+2}  ?

a)

20

b)

40

c)

22

d)

18

113.

How many electrons are there in:

2040Ca+2_{20}^{40}Ca^{+2}  ?

a)

20

b)

40

c)

22

d)

18

114.

What are the 3 discoveries that Rutherford made with the atom?

a)

The atom is mostly empty space

b)

The nucleus has a positive charge

c)

The nucleus is incredibly dense

d)

The electron has a negative charge

115.

Which process involves using a very HEAVY atomic nucleus, that will split up into smaller atoms and particles?

a)

Nuclear Fusion

b)

Nuclear Fission

116.

Which process involves using a very small atomic nucleus, that will merge into larger atoms?

a)

Nuclear Fusion

b)

Nuclear Fission

117.

Which unit is a measurement of mass?

a)

kilogram

b)

meter

c)

gram

d)

milliliter

118.

Wood that is burning in a brush pile has heat, and produces ashes.

a)

Physical

b)

Chemical

119.
Is freezing juice a physical or chemical change?
a)
Physical Change
b)
Chemical Change
120.
How many sig. fig. are in the number below:
350.540
a)
4
b)
5
c)
6
d)
7
121.
What is the correct SI unit for mass?
a)
Kilograms
b)
newtons
c)
pounds
d)

liter

122.
What is the density of a liquid that has a mass of 27g and a volume of 30ml?
a)
0.9 g/ml
b)
3 g/ml
c)
57 g/ml
d)
810 g/ml

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