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Regents Chemistry Unit 12
Test Description: Electrochemistry Fun!
Instructions: Answer all questions to get your test result.
1) What type of reaction involves the transfer of electrons?
A
Accentricity
B
Etherification
C
Reduction-Oxidation (redox)
D
Distillation
2) What charge do uncombined elements have?
A
0
B
42
C
2
D
-1
3) What happens to the oxidation number of the species that is oxidized?
A
It decreases
B
Uh, I like tacos
C
It increases
D
It remains the same
4) What happens to the oxidation number of the species that is reduced?
A
It remains the same
B
It is multiplied by two
C
It increases
D
It decreases
5) In a redox reaction, what term is used to describe the ions that do not change charge in the reaction?
A
Spectator ions
B
Salts
C
Bases
D
Acids
6) If the oxidation state of a species changes from 0 before a redox reaction to 2 after the reaction, what happened to it?
A
It gained 2 electrons
B
It was decomposed
C
It was a spectator ion
D
It lost 2 electrons
7) To balance a net ionic reaction, what must be the same on both sides?
A
The number of acids
B
The amount of water
C
The spectator ions
D
The net charge
8) Table J is the Activity Series that show the activity of metals and nonmetals. For metals, being active means that they are more likely to be
A
Decomposed
B
Oxidized
C
Synthesized
D
Reduced
9) What direction do electrons flow in a voltaic cell?
A
Cathode to anode
B
Anode to cathode
C
Salt bridge to cathode
D
Load to anode
10) Where does oxidation occur in a voltaic cell?
A
Anode
B
Load
C
Cathode
D
Salt bridge
11) Where does reduction occur in a voltaic cell?
A
Salt bridge
B
Cathode
C
Load
D
Anode
12) What flows through the salt bridge in a voltaic cell?
A
Ions
B
Ions
C
Cathodes
D
Anodes
13) What increases in size while a voltaic cell is running?
A
Ions
B
Anode
C
Electrons
D
Cathode
14) What can a flow of electrons be used to power in a voltaic cell?
A
Load
B
Cathode
C
Oxode
D
Anode
15) What process can be used to separate highly reactive elements from their compounds?
A
Ionization
B
Filtration
C
Electrolysis
D
Voltaic cell
16) The existence of a power source indicates that what type of cell is being used?
A
Analytic
B
Criminal
C
Electrolytic
D
Voltaic
17) What process uses an electric current to plate the surface of a less active metal with a more active metal?
A
Evaporation
B
Fractional distillation
C
Evolution
D
Electroplating
*select an answer for all questions
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