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Chapter 4 (NO Molarity Review) Chem II

Total questions: 121

Worksheet time: 4hrs 10mins

Name
Class
Date
1.
a solute whose water solution conducts electricity is called a(n)
a)
nonconductor
b)
electrolyte
c)
nonelectrolyte
d)
aqueous solution
2.
What is a solute?
a)
The substance that does the dissolving in a solution.
b)
The substance that is dissolved into the solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
3.
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
4.
The thing that does the dissolving
a)
Solute
b)
Solvent
c)
Colloid
d)
Solution
5.
Water is a universal solvent
a)
true
b)
false
6.
If an electrical current can run through a solution, it is said to contain
a)
magic
b)
nonelectrolytes
c)
electricity
d)
electrolytes
7.
Which of the following is an electrolyte?
a)
sodium chloride
b)
sugar
c)
water
8.
Solutions in which electric currents cannot run through are said to be
a)
noncolloidal
b)
electrolytes
c)
nonelectrolytes
d)
conductors
9.
An example of a nonelectrolyte is
a)
sugar water
b)
salt water
c)
sodium chloride
d)
hydrogen chloride
10.

Which solution would be least likely to carry an electric current?

a)

NaCl

b)

HCl

c)

C6H12O6

d)

KOH

11.
Which of the following is an electrolyte?
a)
sodium chloride
b)
sugar
c)
water
12.

Four chemical solutions are shown above. Which of the following solutions would correspond to a weak electrolyte?

a)

IV

b)

III

c)

II

d)

I and II

13.

According to the picture, which compound is a stronger electrolyte?

a)

HCl

b)

H2CO3

c)

both are equally strong

d)

neither

14.

Reference the picture for the following problem.

The beaker on the left contains a solution of NaOH. The beaker on the right contains NH3. Both NaOH and NH3 are bases, which one is a weaker base?

a)

NaOH

b)

NH3

c)

neither, both are strong

d)

not enough information to tell

15.

The compound most likely present in this solution is...

a)

HCl

b)

KOH

c)

H2SO4

d)

H2O

16.
a)
Substance A because HCl is a strong acid, therefore, a strong electrolyte
b)
Substance A because HCl is a weak acid, therefore, a nonelectrolyte
c)
Substance B because HCl is a strong acid, therefore a nonelectrolyte
d)
Substance B because HCl is a weak acid, therefore a strong electrolyte
17.
A student tests two solutions for conductivity. One of the solutions does not conduct electricity at all. Which of the following could explain why a solution wouldn't conduct electricity?
a)
The solution is made of ions
b)
The solution is made of an insoluble solute
c)
The solution is made of a soluble solute that does not break into ions when mixed in water
d)
The solution is made of a nonpolar covalent solute
18.
Which of the following compounds is not matched to its proper conductivity?
a. KOH - high conductivity
b. HNO3 - high conductivity
c. NaF - low conductivity
d. mineral oil - no conductivity
a)
a
b)
b
c)
c
d)
d
19.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
20.
Which of the following is a non-electrolyte?
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
21.
Determine whether the following acid is monoprotic, diprotic, or triprotic:
HCl
a)
monoprotic
b)
diprotic
c)
triprotic
d)
huh
22.
Determine whether the following acid is monoprotic, diprotic, or triprotic:
H2SO4
a)
monoprotic
b)
diprotic
c)
triprotic
d)
huh
23.
BASE + ACID ----> SALT +?
a)
water
b)
oxygen
c)
hydrogen ion
d)
hydroxide ion
24.
Write dissociation equations for the following electrolytes. Show physical states of all species involved!
AgClO3
a)
AgClO3(s) →  Ag(aq) + ClO3(aq) 
b)
AgClO3(s) →Ag+(aq) + Cl2 (aq) + O2(aq)
c)
AgClO3(s) →Ag+(aq) + Cl-(aq) + 3O2-(aq)
d)
AgClO3(s) → Ag+(aq) + ClO3-(aq) 
25.
This symbol indicates that a reaction is ____________
a)
reversible
b)
irreversible
26.
When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in
a)
Chemical Equilibrium
b)
Chemical Balance
c)
Chemical Constant
d)
Chemical Reaction
27.
AgCl
a)
soluble
b)
insoluble
28.
NH4NO3
a)
soluble
b)
insoluble
29.
K2SO4
a)
soluble
b)
insoluble
30.
FeS
a)
soluble
b)
insoluble
31.
Ca(OH)2
a)
soluble
b)
insoluble
32.
BaSO4
a)
soluble
b)
insoluble
33.
BaSO4
a)
soluble
b)
insoluble
34.

Is barium fluoride soluble?

a)

soluble

b)

insoluble

35.

Is iron (II) carbonate soluble?

a)

soluble

b)

insoluble

36.

Is Lead (II) Iodide soluble?

a)

soluble

b)

insoluble

37.

Is Barium Chloride soluble?

a)

soluble

b)

insoluble

38.

Is Strontium Carbonate soluble?

a)

soluble

b)

insoluble

39.

Is nickel (II) hydroxide soluble?

a)

soluble

b)

insoluble

40.

Determine the result of the following potential reaction (formulas must be correct/balancing equation is not required).

Bi(OH)2 + Ni →

a)

BiNi + H2O

b)

Bi + NiOH

c)

Bi + Ni(OH)2

d)

no reaction

41.

Determine the result of the following potential reaction (formulas must be correct/balancing equation is not required).

AgF + Cl2 →

a)

AgCl + F2

b)

Ag + ClF

c)

AgF2 + Cl2

d)

no reaction

42.

Determine the result of the following potential reaction (formulas must be correct/balancing equation is not required).

CuCl2 + Ba →

a)

Cu + BaCl

b)

Cu + BaCl2

c)

BaCu + Cl2

d)

no reaction

43.

Determine the result of the following potential reaction (formulas must be correct/balancing equation is not required). (NOTE: Use reference tables: activity series table & guidelines for predicting /single replacement reactions)

Ca + H2O(g) →

a)

CaOH and H2

b)

Ca(OH)2 and H2

c)

CaH2O6

d)

no reaction

44.

In writing the chemical equation for a precipitation reaction, what abbreviation of the physical state must appear with one of the products?

a)

(s)

b)

(g)

c)

(l)

d)

(w)

45.

What would be the formula of the precipitate that forms when Pb(NO3)2 (aq) and K2SO4 (aq) are mixed?

a)

K(NO3)2

b)

PbSO4

c)

PbK2

d)

H2O

46.

Considering the following precipitation reaction:


Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)


Which ion would NOT be present in the complete ionic equation?

a)

Pb2+

b)

K+

c)

NO3-

d)

I-

e)

All the above ions are in the complete ionic equation.

47.

Considering the following precipitation reaction:

Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)

What is the correct complete ionic equation?

a)

Pb2+ + (NO3)2- + 2K+ + 2I- → PbI2(s) + 2K+ + 2NO3-

b)

Pb2+ + 2NO3- +2K+ + I- → PbI2(s) + 2K+ + NO3-

c)

Pb2+ + 2NO3- + 2K+ + 2I- → PbI2(s) + 2K+ + 2NO3-

d)

Pb2+ + 2NO3- + 2K+ + 2I- → Pb2+ + 2I- + 2K+ + 2NO3-

48.

Which of the following compounds is INSOLUBLE?

a)

magnesium phosphate

b)

magnesium sulfate

c)

magnesium iodide

d)

magnesium nitrate

e)

none of the above

49.

What is the net ionic equation for the precipitation reaction between BaCl2 and Na2SO4?

a)

BaCl2(aq) + Na2SO4(aq) --> BaSO4(s) + 2NaCl(aq)

b)

Na+(aq) + Cl-(aq) --> NaCl(s)

c)

Ba2+(aq) + SO42-(aq) --> BaSO4(s)

d)

Ba2+(aq) + 2Cl-(aq) + 2 Na+(aq) + SO42-(aq) --> BaSO4(s) + 2Cl-(aq) + 2Na+(aq)

50.

When solutions of MgCO3 and Fe2(SO4)3 are combined, what precipitate(s) forms?

a)

MgSO4

b)

neither form a precipitate

c)

MgSO4 and Fe2(CO3)3

d)

Fe2(CO3)3

51.

Identify the spectator ion(s) in the equation: 2Ag+(aq) + 2NO3–(aq) + 2Na+(aq) + S2–(aq) --> Ag2S(s) + 2Na+(aq) + 2NO3–(aq)

a)

2Ag+(aq) + 2NO3–(aq)

b)

2Na+(aq) + 2NO3–

c)

2Na+(aq) + S2–(aq)

d)

Ag2S(s) + 2Na+(aq

52.

What kind of substance is water particularly good at dissolving?

a)

molecular compounds

b)

fats and oils

c)

ionic compounds

d)

organic compounds

53.

When some ionic compounds form through reactions in solution, they fall out as a ___

a)

consolidated element

b)

heavy sludge

c)

dense discharge

d)

solid precipitate

54.

Which of the following pairs of solutions produces a precipitate when combined?

a)

Cu(NO3)2 and NaCl

b)

Fe(NO3)3 and MgCl2

c)

Cu(NO3)2 and K2CO3

d)

CaCl2 and NaNO3

55.
Which of the following does NOT form a precipitate?
a)
Pb(NO3)2(aq) + 2KI(aq) →
b)
Sr(NO3)2 (aq) + K2SO4(aq) →
c)
AgNO3(aq) + Na2S(aq) →
d)
 Pb(NO3)2(aq) + AgNO3(aq) →
56.
What are the spectator ions in this reaction?
CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq)
 
a)
Cu2+ and OH1-
b)
Na2+ and Cl2-
c)
Na1+ and Cl1-
d)
Na1+ and OH1-
57.

What is the net ionic equation for the reaction between K3PO4 (aq) and CuSO4 (aq)?

a)

2 K+(aq) + SO42-(aq) → K2SO4 (s)

b)

K+(aq) + SO42-(aq) → KSO4 (s)

c)

2 Cu2+(aq) + 3 PO43-(aq) → Cu3(PO4)2 (s)

d)

Cu2+(aq) + PO43-(aq) → CuPO4 (s)

58.

Which of the following is a strong acid?

a)

NaOH

b)

HCl

c)

HF

d)

H2O

59.

Which of the following is a strong base?

a)

NH3

b)

Zn(OH)2

c)

HCl

d)

CsOH

60.

Predict the products of this reaction.

HCl + Ca(OH)2

a)

NaCl

b)

CaCl2

c)

CaCl2 + H2O

d)

H2O

61.

A chemical reaction between an acid and a base, forming a salt and water is known as ____.

a)

ionization

b)

concentration

c)

neutralization

d)

animation

62.

Sodium hydroxide (NaOH) is known as a strong base. Which statement is true about NaOH after dissolving in solution?

a)

few OH- ions; many NaOH molecules

b)

many OH- ions; few NaOH molecules

63.

In a net ionic equation, this compound, HNO2

a)

will stay together

b)

will break apart

64.

In a net ionic equation this compound, KOH

a)

will stay together

b)

will break apart

65.
In the reaction
2Ca(s) + O2(g) → 2CaO(s), calcium is...
a)
Reduced
b)
Synthesized
c)
Oxidized
d)
None of the above
66.
In the reaction Zn + H2O → ZnO2 + H2 which element is oxidized? 
a)
Zinc
b)
Hydrogen
c)
Oxygen
d)
None
67.
What substance is oxidized in the following reaction? 
Fe+2 + MnO4  → Fe+3 + Mn+2   
a)
Fe+2
b)
Mn+3
c)
Mn+2
d)
MnO4
68.
Which is the correct net ionic equation for the reaction of AgNO3 and CaCl2?
a)
Ca2+(aq) +  2Cl- (aq) → CaCl(s)
b)
Ag+(aq)  +  Cl- (aq) → AgCl(s)
c)
Ag +  Cl  →  AgCl
d)
Ag+  +  Ca2+   →Ag2Ca (s)
69.
What is the precipitate formed between potassium bromide and ammonium sulfide
a)
potassium sulfide
b)
ammonium bromide
c)
potassium ammonium
d)
no ppt is formed
70.

Hydrogen sulfide gas is bubbled through a solution of potassium hydroxide; what is the net ion equation?

a)

H+ + OH- --> H2O

b)

H2S + OH - --> H2O + S2-

c)

no rxn

d)

H2S + KOH ->H2O + K2S

71.

A solution of sulfuric acid is added to a solution of barium hydroxide; What is the net ionic equation?

a)

H2SO4 + Ba2+ + OH- -->BaSO4 + H2O

b)

H+ + OH- --> H2O

c)

H2SO4 + Ba2+ + OH- -->Ba2++ SO4 2-+ H2O

d)

H+ + SO42- + Ba2+ + OH- -->BaSO4 + H2O

72.
A displacement reaction will occur when...
a)
a more reactive metal displaces a less reactive metal from its compound.
b)
A less reactive metal displaces a more reactive metal from its compound
c)
Displacement only occurs when two of the same metals are reacted 
d)
Displacement reactions will only occur in metals above iron in the reactivity series
73.
Which metal is more reactive than calcium?
a)
magnesium
b)
potassium
c)
silver
d)
aluminum
74.

Based on the activity series, which metal could X represent in the reaction below?

X + Calcium nitrate —> Calcium + X nitrate

a)

Ba

b)

Fe

c)

Mg

d)

Zn

75.
Which of the following will not undergo reaction?
a)
zinc metal  +  zinc oxide 
b)
iron metal  +  copper oxide
c)
zinc metal +  iron oxide
d)
magnesium  +  iron oxide
76.
Will silver react with magnesium chloride solution?
a)
yes
b)
no
77.

Determine the result of the following potential reaction.

Nickel added to cold water .

a)

Nickel added to cold water produces nickel hydroxide and hydrogen gas.

b)

Nickel added to cold water produces nickel oxide and hydrogen gas.

c)

No Reaction

78.

Indicate which of the following is more reactive.

a)

FLUORINE

b)

BROMINE

79.

Determine the result of the following potential reaction.

Potassium added to cold water .

a)

Potassium added to cold water produces potassium hydroxide and hydrogen gas.

b)

Potassium added to cold water produces potassium oxide and hydrogen gas.

c)

No Reaction

80.
Which of the following metals is the most reactive according to the reactivity series of metals.
a)
Copper
b)
Zinc
c)
Magnesium 
d)
Lithium
81.

Will this reaction happen if solid copper is dipped into a solution of zinc nitrate?

a)

Yes

b)

No

82.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
83.
The following is what type of reaction:
NH3 + HCl  → NH4Cl
a)
Synthesis
b)
Decomposition
c)
Single Replacement Replacement
d)
Double Replacement Replacement
84.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
85.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
86.
Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
87.

Defined as the loss of electrons.

a)

oxidation

b)

reduction

c)

redox

d)

OIL RIG

88.

Defined as the gain of electrons.

a)

oxidation

b)

redox

c)

reduction

d)

LEO GER

89.
What are the products of this reaction: Fe + Na2CO3 ?
a)

Na2 + Fe(CO3)2

b)

Na + CO3Fe

c)

Na + Fe2CO3

d)

No Reaction

90.
What are the products of this single replacement reaction: Mg + CuSO4
a)

Cu + MgSO4

b)

Cu + SO4Mg

c)

Cu + Mg(SO4)2

d)

No Reaction

91.
What  will be the result of the following: 
Li + NaF ->
a)

Li will replace F

b)

Na will replace Li

c)

Li will replace Na

d)

no reaction will occur

92.

Which metal is more reactive, zinc or copper?

a)

gold

b)

zinc

c)

copper

d)

iron

93.

What is the reactivity series of metals based on?

a)

Their color

b)

Their atomic number

c)

Their ability to displace one another in a chemical reaction

d)

Their melting point

94.

In the reactivity series, which metal is more reactive: iron or lead?

a)

Gold

b)

Iron

c)

Lead

d)

Aluminum

95.

What is the reactivity series of metals used for in chemistry?

a)

To predict the melting point of the metal

b)

To calculate the density of the metal

c)

To determine the color of the metal

d)

To determine the likelihood of a metal to react with other substances.

96.

What is the significance of the reactivity series in predicting the outcome of displacement reactions?

a)

It has no significance in predicting displacement reactions

b)

It is used to determine the color of the products in displacement reactions

c)

It helps to predict the outcome of displacement reactions by comparing the reactivity of different metals.

d)

It only applies to non-metal elements

97.

Based on the activity series, which metal could X represent in the reaction below?

X + Ca (NO3)2 --> Ca + X (NO3)2

a)

Sr

b)

Na

c)

Mg

d)

Zn

98.

What are the products of this reaction:

C2H4 + O2 -->

a)

C2O2 + H4

b)

CO2 + H2 + O2

c)

CO + H

d)

CO2 + H2O

e)

No Reaction

99.
Write the balanced equation for octane (C8H18) combusting
a)
C8H18 + 8O2 --> 8CO2 + 9H2O
b)
C8H18 + 17O2 --> 8CO2 + 9H2O
c)
2C8H18 + 25O2 --> 16CO2 + 18H2O
d)
C8H18 + O2 --> CO2 + H2O
100.

Sodium is more reactive than Aluminum

a)

True

b)

False

c)

Unsure

101.

Will a single replacement reaction occur if copper is added to a solution of silver nitrate?

a)

No.

b)

Yes

c)

Maybe.

d)

I'm not sure.

102.

Will a single replacement reaction occur if iron is added to a solution of magnesium chloride?

a)

Yes.

b)

Maybe.

c)

It depends on the concentration of magnesium chloride.

d)

No

103.
Oxygen always has an oxidation number of...
a)
-1
b)
1
c)
2
d)
-2
104.
Is calcium oxidized or reduced in the following reaction? 
2CaO--> 2Ca + O2
a)
Oxidized
b)
Reduced
105.
     In the reaction Zn + H2O --> ZnO2 + H2
 which element, if any, is oxidized? 
a)
Zinc
b)
Hydrogen
c)
Oxygen
d)
None
106.
What element is being Oxidized?
a)
N
b)
H
c)
O
d)
S
107.
What element is being Reduced?
a)
N
b)
H
c)
O
d)
S
108.
What element is being reduced?
a)
I
b)
H
H
c)
S
S
d)
O
O
109.
What is oxidation number of Cr in Cr2O72-?
a)
-2
b)
+2
c)
+6
d)
+12
110.
What is oxidation number of Fe in FeO ?
a)
+2
b)
-2
c)
0
d)
+1
111.
What is oxidation number of O in O2 ?
a)
0
b)
-2
c)
+1
d)
+2
112.

What is the oxidation number of C in SrCO3?

a)

-4

b)

+2

c)

-6

d)

+4

113.

What is the oxidation number of Cr in Cr2O72- ?

a)

+14

b)

+6

c)

-6

d)

-14

114.

What is the reducing agent here: N2 + 3H2 --> 2NH3

a)

N2

b)

H2

c)

NH3

d)

2NH3

115.

Mg + PbCl2 --> MgCl2 + Pb. Which statement correctly describes the oxidation and reduction that occur?

a)

Mg is oxidized and Cl- is reduced

b)

Mg is oxidized and Pb+2 is reduced

c)

Mg is reduced and Cl- is oxidized

d)

Mg is reduced and Pb+2 is oxidized

116.

Lead(II) oxide undergoes a number of different redox reactions. In which of the following reactions is lead(II) oxide,PbO, not reduced?

a)

A

b)

B

c)

C

d)

D

117.

Three reactions are shown below.

NO+O3 →NO2 +O2

2C +O2 → 2CO

2MgO+O2 → 2MgO

Which row correctly describes the process each reactant molecule undergoes?

a)

A

b)

B

c)

C

d)

D

118.

Which row correctly describes the process of reduction in terms of oxygen, electrons, and oxidation state?

a)

A

b)

B

c)

C

d)

D

119.

A series of redox reactions are shown.What is the oxide that undergoes oxidation?

2CO+2NO→ 2CO2 +N2

Fe2O3 +2Al → Al2O3 +2Fe

2ZnO+C → 2Zn +CO2

Fe2O3 +3CO→ 2Fe+3CO2

a)

A

b)

B

c)

C

d)

D

120.

The "OIL" in "OILRIG" stands for: ___

a)

oxidation is loss of electrons

b)

oxidation is loss of protons

c)

only in lieu of reactions

d)

Office of Immigration Litigation

121.

The "RIG" in "OILRIG" stands for: ___

a)

reduction is gain of protons

b)

oxidation is giving up protons

c)

reduction is gain of electrons

d)

reduction is giving up electrons

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