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Question
Consider the following half-reactions:
Cl2(g) + 2 e- 2 Cl-(aq) E = +1.36 V
Ag+(aq) + e- Ag(s) E = +0.80 V
Cu2+(aq) + 2 e- Cu(s) E = +0.34 V
Sn2+(aq) + 2 e- Sn(s) E = -0.14 V
Al3+(aq) + 3 e- Al(s) E = -1.66 V
Which of the above elements or ions will reduce Cu2+(aq)?
A.Ag(s) and Sn2+(aq)
B.Cl-(aq) and Ag(s)
C.Cl2(g) and Ag+(aq)
D.Sn(s) and Al(s)
E.Sn2+(aq) and Al3+(aq)
Answer
This answer is hidden. It contains 2 characters.
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B.
C.
D.
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B.
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Q:
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Q:
Hydrogen peroxide decomposes into water and oxygen in a first-order process.
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Q:
A student analyzed a first-order reaction and obtained the graph below. Unfortunately, the student forgot to label the axes. What are the correct labels for the x and y axes? A.x axis = time, y axis = ln[A]
B.x axis = ln[time], y axis = [A]
C.x axis = ln[time], y axis = [A]
D.x axis = time, y axis = 1/[A]
E.x axis = 1/time, y axis = 1/[A]