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Exam 2

Total questions: 143

Worksheet time: 3hrs 22mins

Name
Class
Date
1.

Classify this type of matter

a)

Pure Substance

b)

Mixture

2.

Classify this type of matter

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

3.

Classify this matter

a)

Pure Substance

b)

Mixture

4.

Classify this matter

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

5.

Classify this matter.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

6.

Classify this matter.

a)

Pure Substance

b)

Mixture

7.

Classify this matter

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

8.

Classify this matter

a)

Pure Substance

b)

Mixture

9.

Classify this matter.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

10.

Classify this matter.

a)

Pure Substance

b)

Mixture

11.

Classify this matter.

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

12.

Classify this matter.

a)

Pure Substance

b)

Mixture

13.

Classify this matter: Iron filings (Fe)

a)

Pure Substance

b)

Mixture

14.

Classify this matter: Iron filings (Fe)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

15.

Classify this matter: Limestone (CaCO3)

a)

Pure Substance

b)

Mixture

16.

Classify this matter: Limestone (CaCO3)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

17.

Classify this matter: Tap water from sink

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

18.

Classify this matter: Tap water from sink

a)

Pure Substance

b)

Mixture

19.

Classify this matter: Pure water (H2O)

a)

Pure Substance

b)

Mixture

20.

Classify this matter: Pure water (H2O)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

21.

Classify this matter: Pacific Ocean (water & salt)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

22.

Classify this matter: Pacific Ocean (water & salt)

a)

Pure Substance

b)

Mixture

23.

Classify this matter: Air

a)

Pure Substance

b)

Mixture

24.

Classify this matter: Air

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

25.

Which of the following would be considered a physical change?

a)

Cutting paper

b)

pH test

c)

Burning marshmellow

d)

Roasting a Turkey

26.

Which of the following would be considered a physical property?

a)

Colour

b)

Flammability

c)

pH

d)

Reactivity

27.

An ice cream cone melting is a

a)

physical change

b)

chemical change

28.

a bicycle rusting in the rain is a

a)

physical change

b)

chemical change

29.

Water boiling into steam is a

a)

physical change

b)

chemical change

30.

A candle burning is a

a)

physical change

b)

chemical change

31.

Water freezing into ice is a

a)

physical change

b)

chemical change

32.

A carton of milk going sour is a

a)

physical change

b)

chemical change

33.

A ------ change occurs when a new substance forms

a)

physical

b)

chemical

34.

A ------ change occurs when matter changes size, shape orv form

a)

physical

b)

chemical

35.
What is the phase change of a solid to a liquid?
a)
freezing
b)
melting
c)
boiling
d)
condensation
36.
2. A change of state from a liquid to a solid is called....
a)
Melting
b)
Freezing
c)
Evaporation
37.
5. What is it called when a solid turns directly into a gas?
a)
Sublimation
b)
Condensation
c)
Liquid
38.
The phase change from water vapor to liquid water is known as...
a)
evaporation
b)
precipitation
c)
condensation
d)
sublimation
39.
a)
Freezing
b)
Melting
c)
Condensation
d)
Evaporation
40.

What state of matter is pictured?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

41.
Change from Gas to Solid is called........
a)
Sublimation
b)
Deposition
c)
Fusion
d)
condensation
42.
Sublimation is
a)
when solid turns into gas
b)
when gas turns into plasma
c)
when liquid turns into gas
d)
when gas turns into solid
43.
How do the following two elements bond together?
Cr3+  O2-         
a)
CrO
b)
Cr3O2
c)
Cr2O3
d)
CrO3
44.
What is the formula for magnesium chloride?
a)
MgCl
b)
Mg2Cl
c)
MgCl2
d)
Mg(ClO3)2
45.
Which of these combinations is an ionic compound made of?
a)
Metal and Metal
b)
Nonmetal and Nonmetal
c)
Metal and Nonmetal
d)
Cation and Cation
46.

Hydrogen nitrite (nitrous acid)

a)
H2NO3
b)
HNO3
c)
HNO2
d)
H2NO2
47.
What is the element/ion symbol for Iron(III)?
a)
Fe
b)
Fe3+
c)
Fe3-
d)
Fe(III)
48.
What is the name of the compound Li(OH)?
a)
lithium hydrogen oxide
b)
lithium hydroxide
c)
lithium hydride
d)
lithium oxide hydride
49.
The chemical formula for an ionic compound of potassium and oxygen is
a)
KO.
b)
K2O.
c)
K2O2.
d)
KO2.
50.
Name this compound: 
Ca(CO3)
a)
Calcium carbon oxide
b)
Calcium (II) carbonate
c)
Calcium carbonate
d)
Carbonate (I) calcide
51.
What is the formula for sodium nitrate?
a)
Na3(NO)
b)
Na(NO)
c)
Na3(NO3)
d)
Na(NO3)
52.
What is the compound made between Chlorate and Magnesium
a)
Cl2Mg
b)
(ClO3)2Mg
c)
MgCl2
d)
Mg(ClO3)2
53.
How do the following two elements bond together?
Pb4+  O2-       
a)
PbO
b)
Pb4O2
c)
PbO2
d)
Pb2O4
54.
The name of FeCl₂ is
a)
iron chloride
b)
iron (II) chloride
c)
iron (I) chloride
d)
iron dichloride
55.
The name of Cu₃N₂ is
a)
copper (III) nitride
b)
copper (II) nitride
c)
copper nitride
d)
tricopper dinitride
56.
What is the formula for Copper II Sulfide?
a)
CuS
b)
Cu₂S
c)
CuS₂
d)
CuSO₃
57.

What is the correct formula for Calcium Phosphate?

a)

Ca3(PO4)2

b)

Ca3(PO4)

c)

Ca2(PO4)

d)

Ca2(PO4)2

58.

What is the correct formula for Calcium Phosphate?

a)

Ca3(PO4)2

b)

Ca3(PO4)

c)

Ca2(PO4)

d)

Ca2(PO4)2

59.

What is the correct name for the compound with the formula (NH4)3PO4

a)

Ammonium Pyrophosphite

b)

Ammonium Phoporylate

c)

Ammonium Phosphite

d)

Ammonium Phosphate

60.

The correct name for the compound with the formula PbSO3 is

a)

Lead (II) Sulfite

b)

Lead (III) Sulfite

c)

Lead Sulfite

d)

Lead Sulfate

61.

What is the correct name for MoO3

(think about how compounds have to be reduced to the simplest integer ratio)

a)

Molybdenum V oxide

b)

Molybdenum VI oxide

c)

Molybdenum III oxide

62.

What is the correct name for Mn(SO4)2

a)

Manganese (VI) Sulfate

b)

Manganese (IV) Sulfate

c)

Magnesium (II) Sulfide

d)

Magnesium (III) Sulfide

63.

What is the correct name for the compound with the formula NH4NO3

a)

ammonium nitrite

b)

ammonium nitrate

c)

ammonium nitride

64.

What is the name for the compound with the formula NH4Cl

a)

ammonium chloride

b)

ammonium hypochlorite

c)

ammonium hypochlorate

d)

ammonium chlorate

65.

What is the correct formula for a mercury II sulfate

a)

Hg(SO4)3

b)

Hg(SO4)4

c)

Hg(SO4)2

d)

HgSO4

66.

What is the correct formula for aluminum nitrate

a)

Al2(NO3)3

b)

Al(NO3)3

c)

Al(NO3)2

d)

Al2(NO3)4

67.

What is the correct name for the compound with the formula Pb(NO3)2

a)

Lead (I) Nitrate

b)

Lead Nitrite

c)

Lead (II) Nitrate

d)

Lead Nitrate

68.

What is the correct name for Mn(SO4)3

a)

Manganese (VI) Sulfite

b)

Manganese (VI) Sulfate

c)

Manganese (III) Sulfate

69.

What is the correct formula for iron III phosphate

a)

Fe3P4

b)

Fe(PO4)

c)

Fe2(PO4)2

d)

Fe6(PO4)3

70.

What is the correct name for CF4

a)

Carbon fluoride

b)

Carbon IV fluoride

c)

Carbon tetrafluoride

71.

What is the correct name for (NH4)2S

a)

Ammonium sulfate

b)

Nitrogen octhydrogen sulfide

c)

Ammonium sulfide

72.

What is the proper formula for copper II bromide?

a)

CuBr

b)

CuBr2

c)

Cu2Br

73.

What is the correct name of the compound P2O5

a)

phosphorous oxide

b)

diphosphorous pentoxide

c)

phosphorous pentoxide

74.

What formula represents dinitrogen trioxide?

a)

N3O2

b)

NO2

c)

N2O3

75.

Hydrogen peroxide represents which formula?

a)

HO

b)

HO2

c)

H2O2

76.

What is the name of the compound P4S10

a)

phosphorous sulfide

b)

tetraphosphide decasulfate

c)

phosphorous decasulfate

d)

tetraphosphorous decasulfide

77.

What is the name of Al2O3

a)

aluminum oxide

b)

dialuminum trioxide

c)

aluminum III oxide

78.

What is the chemical formula of sulfur hexabromide?

a)

SBr₆

b)

S₆Br

c)

S(VI)Br

d)

SBr4

79.

What is the name for BrO3?

a)

bromine oxide

b)

monobromine trioxide

c)

bromine trioxide

d)

bromide trioxide

80.

What is the name of the compound with the formula Ba3P2?

a)

barium phosphide

b)

barium diphosphide

c)

tribarium diphosphide

d)

barium phosphorous

81.

What is the formula for copper(I) sulfate?

a)

CuSO3

b)

CuSO4

c)

Cu2SO3

d)

Cu2SO4

82.

What is the formula for mercury (I) oxide?

a)

HgO

b)

Hg2O

c)

HgO2

d)

Hg2O2

83.

What is the formula for manganese (IV) sulfide?

a)

Mn4S2

b)

MnS2

c)

Mn2S4

d)

MnS

84.
Name this compound:
Cs2S
a)
cesium sulfide
b)
cesium sulfate
c)
cesium II sulfate
d)
cesium II sulfide
85.

Name for BaO

a)

Barium oxide

b)

Barium monoxide

c)

Monobarium oxide

d)

Monobarium monoxide

86.
Name HF
a)
hydrofluoric acid
b)
Hypofluoric acid
c)
hydrogen fluorine acid
d)
fluoric acid
87.
What is the formula for hydrochloric acid?
a)
HCl
b)
HClO
c)
H3ClO3
d)
HClO3
88.
What is the formula for nitric acid?
a)
HNO2
b)
HNO3
c)
HNO4
d)
H2NO3
89.
What is the formula for perchloric acid?
a)
H3ClO3
b)
H3ClO4
c)
HClO3
d)
HClO4
90.
HNO2
a)
hydronitrogen
b)
hydrogen nitrogen oxygen
c)
nitrous acid
d)
nitric acid
91.
Hydroiodic acid
a)
H2I2
b)
H1I1
c)
HI
92.
carbonic acid
a)
H2CO3
b)
H2CrO4
c)
H2C2O4
d)
HCO3
93.
Name the acid: HC2H3O2
a)
Acetic Acid
b)
Acetous Acid
c)
Hydrogen Acetate
d)
Hydrogen Dicarbon Trihydrogen Dioxygen
94.
What is the formula for Hydrosulfuric Acid?
a)
H2(SO3)
b)
H2S
c)
H2(SO2)
d)
H2(SO4)
95.
Name the acid: H3PO3
a)
hydrophosphoric acid
b)
phosphorous acid
c)
phosphoric acid
d)
phosphoric hydroxide
96.
chlorous acid
a)
HClO3
b)
HClO2
c)
HClO
d)
HCl
97.

The correct name for this acid H2SO3 is

a)

Hydrosulfiric acid

b)

Sulfurous acid

c)

Sulfiric acid

d)

Sulfate acid

98.
Select the formula for the following acid: chloric acid
a)
HClO3
b)
HCl
c)
HClO4
99.
What is the formula for Chromic Acid?
a)
H3CrO4
b)
H2CrO4
c)
H3Cr2O7
d)
HCrO4
100.

Which acid names will contain the suffix -ic? Check all that apply

a)

HCl

b)

H2SO4

c)

HNO3

d)

H3PO3

e)

H2S

101.

Which of the following are binary acids? Check all that apply.

a)

HCl

b)

HNO3

c)

H2S

d)

KCl

e)

H2CO3

102.

What is the formula for hydrophosphoric acid

a)

H3PO4

b)

H3PO3

c)

H3P

d)

HP

103.

Name this acid. HClO

a)

chloric acid

b)

perchloric acid

c)

hydrochloric acid

d)

hypochlorous acid

104.

Name the acid with the formula, H2SeO4?

a)

selenate acid

b)

selenite acid

c)

selenic acid

d)

selenous acid

105.

Calculate the molar mass for Al(OH)3

a)

78.0 g/mol

b)

72 g/mol

c)

28 g/mol

d)

25 g/mol

106.
What is the molar mass of B2(CO3)3?
a)
81.632 g/mol
b)
94.842 g/mol
c)
38.822 g/mol
d)
201.648 g/mol
107.

What is the molar mass of (NH4)2S?

a)

57.18 g/mol

b)

68.17 g/mol

c)

32.07 g/mol

d)

17.04 g/mol

108.

What is the molar mass of Li2O?

a)

22.94 g/mol

b)

29.88 g/mol

c)

45.88 g/mol

d)

38.94 g/mol

109.
How many molecules are in 9.44 moles of AlCl3?
a)
5.68 molec AlCl3
b)
5.68x1024 molec AlCl3
c)
0.705 molec AlCl3
d)
1.25x1023 molec AlCl3
110.
How many moles of copper are 4.57 x 1013 atoms of copper?
a)
7.59 x 10-11 moles
b)
2.75 x 1037 moles
c)
7.59 x 1011 moles
d)
2.75 x 1033 moles
111.

Which list of number of atoms in K3PO3 is right?

a)

K: 3

PO: 3

b)

K: 3

P: 1

O: 3

c)

K :  3

P: 4

O: 1

d)

K: 3

P: 5

O: 4

112.

Find the mass in grams of 6.022 x 10236.022\ x\ 10^{23}    molecules of fluorine gas .

(a)  

113.

How many grams of zinc are in 15.0 grams of zinc sulfide (ZnS)?

a)

65.38g

b)

10.1 g

c)

4.9 g

d)

67.1 g

114.
How many grams are in 1.2 x 1024 molecules of CO?
a)
28 grams
b)
56 grams
c)
6.02 grams
d)
1.2 grams
115.

How many formula units of calcium chloride are in a 25.69 g sample?

a)

1.394 x 1023 units

b)

2851 units

c)

.2315 units

d)

3.845 x 1025 units

116.
What is the percent composition by mass of oxygen in the compound MgSO4 (gram formula mass = 120 g/mol)?
a)
20%
b)
27%
c)
46%
d)
53%
117.
What is the percent by mass of fluorine in CaF2 (gram-formula mass = 78 g/mol)?
a)
24%
b)
49%
c)
51%
d)
65%
118.

You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.

a)

SO

b)

SO2

c)

SO3

d)

SO4

119.

A compound consists of 72.2% magnesium and 27.8% nitrogen by mass. What is the empirical formula?

a)

Mg4N3

b)

MgN2

c)

Mg3N2

d)

MgN

120.
What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18?
a)
CH2O
b)
C2H4O2
c)
C4H8O4
d)
C6H12O6
121.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
122.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
123.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
124.
What is the correct structure for BF3?
a)
Option A.
b)
Option B. 
c)
Option C.
d)
Option D.
125.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
126.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
127.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
128.

Is this the correct structure for CH2O?

a)

Yes

b)

No

129.

NH3 has how many lone pairs?

a)

0

b)

1

c)

2

d)

3

130.

CCl4 has how many double bonds?

a)

0

b)

1

c)

2

d)

3

131.

What molecular geometry would PH3 have?

a)

Trigonal Pyramidal

b)

Trigonal Bipyramidal

c)

Bent

d)

Linear

132.

What is the molecular geometry/shape of HCN?

a)

linear

b)

trigonal planar

c)

bent

d)

tetrahedral

133.
Determine the molecular shape of carbon tetrafluoride.
a)
linear
b)
trigonal planar
c)
bent
d)
tetrahedral
134.
What molecular shape is the structure shown here? (H2O)
a)
tetrahedral
b)
trigonal planar
c)
bent
d)
trigonal pyramidal
135.

What is the molecular geometry of this molecule (look at the C)?

a)

Trigonal Planar

b)

Tetrahedral

c)

Linear

d)

T-Shaped

136.

What is the molecular geometry of this molecule?

(a)  

137.

Which geometric molecular shape is shown?

a)

trigonal planar

b)

linear

c)

bent

d)

trigonal pyramidal

138.

Which geometric molecular shape is shown?

a)

bent

b)

trigonal pyramidal

c)

tetrahedral

d)

trigonal planar

139.

What is the molecular geometry of the molecule?

a)

Linear

b)

Bent

c)

Tetrahedral

d)

Trigonal Planar

140.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
141.
Bond angle for trigonal planar
a)
120o
b)
109.5o
c)
104.5o
d)
107o
142.
Bond angle for tetrahedral
a)
120o
b)
109.5o
c)
104.5o
d)
107o
143.
This molecule is...
a)
polar
b)
unpolar

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