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AP Chemistry Electrochemistry
AP Chemistry Electrochemistry
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AP Chemistry Chapter 20 Electrochemistry
Flashcards
40 cards
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Practice quiz
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Host live
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Questions
40
Answers
1
When balancing a redox reaction in basic solution, the number of OH
-
ions added must equal ___.
H+ ions on the other side
H2O molecules on the other side
H2O molecules on the same side
H+ ions on the same side
2
Which Iron Man movie is this?
3
1
2
3
What country is this in?
India
Laos
Cambodia
Vietnam
4
If a reaction is spontaneous, then ΔG has to be ____ and E
O
has to be ____.
negative, negative
positive, positive
negative, positive
positive, negative
5
Oxidation takes place at the _____?
cathode
oxidator
half-cell
anode
6
Chuck Norris counted to infinity ______.
Twice
Never
Thrice
Once
7
If a voltaic cell has a negative E
O
value, what is the sign on ΔG, and is it favorable?
positive, yes
negative, yes
negative, no
positive, no
8
Which is not one of the five core emotions (or characters) in Pixar's 'Inside Out'?
Sadness
Fear
Joy
Surprise
9
Charges must be equal on both sides in order for a redox reaction equation to be balanced.
False
True
10
Which element is easiest to oxidize?
Li
F
Mg
H
11
"Cape Hatteras" is in which US state?
Virginia
Florida
North Carolina
California
12
What is the coefficient on permanganate when the equation is balanced? MnO
4
-
+ Br
-
→ Mn
2+
+ Br
2
5
3
1
2
13
What popular children's show debuted on PBS in 1969?
Sesame Street
Word Man
Learning Corner
Reading People
14
When Br
-
is oxidized to its highest potential oxidation state, what is the charge?
3-
7+
7-
3+
15
What is the oxidation number of oxygen in the compound H
2
O
2
?
+1
0
-1
-2
16
Which is the highest grossing rated-R movie of all time (lifetime earnings)?
Passion of the Christ
Pulp Fiction
Deadpool
American Sniper
17
What is the oxidation number of nitrogen in HNO
3
?
-3
+5
+1
+3
18
This image is ____
white and gold
black and blue
19
The oxidation number of chromium in Cr
2
O
7
2+
is _____.
+3
+7
+12
+6
20
Kanye West _____
2020
2024
2016
East
21
In hypochlorous acid, the charge on chlorine is _____.
-1
+7
+1
+5
22
A voltaic cell can be constructed of the same species as long as the ____ are different.
ΔG values
concentrations
equilibrium constants
EOred values
23
In a voltaic cell, does the oxidant or the reductant lose mass?
reductant
oxidant
24
What is the standard reduction potential of hydrogen, assuming normal conditions?
-0.27
1.09
0.00
-0.96
25
According to the diagram, which is the cathode?
Zn
Sn
26
What is the charge of carbonate in CO
3
2-
?
4+
2-
1-
0
27
1 volt is equal to what?
1 faraday
95,000 coulombs
1 amp/sec
1 joule/coulomb
28
What movie?
22 Jump Street
21 Jump Street
29
According to the diagram, which is the anode?
Zn
Sn
30
Reduction takes place at the _____?
cathode
anode
electrode
reductor
31
E
red
(Zn)
= -0.76 E
red
(Cu)=0.16 Which is the cathode?
Cannot be determined
Cu
A diagram is necessary to determine the answer
Zn
32
Which of the following types of elements is most likely to be a good oxidizing agent?
alkaline earth metals
alkali metals
lanthanides
halogens
33
The more _____ the value of E
O
red
, the greater the driving force for reduction.
endothermic
exothermic
positive
negative
34
What are the sum of the coefficients when this half-reaction is balanced? MnO
4
-
(aq) → Mn
2+
(aq)
19
3
7
14
35
How many electrons appear in the half reaction Cr → Cr
2
O
7
2+
when balanced?
5
7
14
10
36
Which is the oxidizing agent? Zn(s) + 2H
+
(aq) → Zn
2+
(aq) +H
2
(g)
Zn(s)
Zn2+(aq)
H2(g)
H+(aq)
37
According to the diagram, which element is gaining mass, therefore resulting in decreasing M?
Zn
Sn
38
Which one of the following is the best oxidizing agent?
Na
O2
Li
H2
39
According to the diagram, what is the direction of electron flow?
right →
left ←
40
The AP Chemistry exam is on which date?
May 4
May 2
May 3
May 5
