Chemistry Concepts and Applications

Chapter 17: Electrochemistry

Chapter Test Practice

1
In the electrolytic cell, anions move from the __________, while cations move from the __________.

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A)anode to the cathode; cathode to the anode
B)cathode to the anode; anode to the cathode
C)anode to the anode; cathode to the cathode
D)cathode to the cathode; anode to the anode
2
In the electrolytic cell shown, what is the reducing agent?

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A)copper metal
B)copper ions
C)zinc metal
D)zinc ions
3
This reaction occurs at the anode of an electrolytic cell.
A)oxidation
B)redox
C)reduction
D)synthesis
4
The anion in an aqueous ammonium nitrate solution is __________.
A)NO3-
B)NH4+
C)N3-
D)O2-
5
If you wanted to electroplate a metal object with silver, you would use silver as the __________.
A)anode
B)battery
C)cathode
D)metal to be plated
6
What is the cathode in the electrolytic cell used for silver plating?
A)the electrolyte solution
B)the object to be plated
C)the power source
D)the silver metal source
7
Chemical energy is converted into electrical energy in a __________.
A)electrical cell
B)electrolytic cell
C)galvanic cell
D)motor
8
What reaction occurs when a strip of tin is immersed in an aqueous calcium nitrate solution?
A)none
B)Sn → Sn2+ + 2e-
C)Ca → Ca2+ + 2e-
D)Sn → Sn4+ + 4e-
9
This element is used in pacemaker batteries.
A)arsenic
B)boron
C)lithium
D)potassium
10
What is the anode reaction when a NiCad battery is used to generate electric current?

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A)oxidation of cadmium in the presence of an acid
B)oxidation of cadmium in the presence of a base
C)reduction of cadmium in the presence of an acid
D)reduction of cadmium in the presence of a base
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