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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.
Related questions
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H2O2(aq) H2O() + 1/2 O2(g)
At 20.0 C, the half-life for the reaction is 3.92 104 seconds. If the initial concentration of hydrogen peroxide is 0.52 M, what is the concentration after 7.00 days?
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Q:
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What is the distance, in atomic radii, along any edge of a body-centered unit cell?
A.
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D.
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If a metal crystallizes in a primitive cubic lattice, each metal atom has ____ "nearest neighbors."
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If a metal crystallizes in a face-centered cubic lattice, each metal atom has ____ "nearest neighbors."
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Arrange the three common unit cells in order from least dense to most dense packing.
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C.primitive cubic < face-centered cubic < body-centered cubic
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Q:
Which equation represents the number of atoms in a body-centered cubic unit cell?
A.
B.
C.
D.
E.
Q:
The solubility product equilibrium constant, Ksp, of silver bromide is 5.4 10-13 at 298 K.
AgBr(s) Ag+(aq) + Br-(aq)
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B.-5.87 kJ/mol
C.5.87 kJ/mol
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Q:
What is the equilibrium constant for reaction below at 25 C? (R = 8.314 J/Kmol)2 NO(g) + O2(g) 2 NO2(g)given DfG [NO(g)] = +86.6 kJ/mol and DfG [NO2(g)] = +51.2 kJ/mol.A.3.9 10-13B.1.0C.2.6 1012D.1.6 106E.3.8 1028
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All of the following relationships are true EXCEPT
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B..
C..
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Q:
Calculate DrG for the combustion of benzene at 325 K.2 C6H6() + 15 O2(g) 12 CO2(g) + 6 H2O()Species DfH (kJ/mol) S (J/Kmol)C6H6() 49.0 173.3O2(g) 0 205.1CO2(g) -393.5 213.7H2O() -285.8 67.0A.-6386 kJ/mol-rxnB.-6078 kJ/mol-rxnC.-7251 kJ/mol-rxnD.-8611 kJ/mol-rxnE.+1431 kJ/mol-rxn
Q:
If a chemical reaction is exothermic, but not spontaneous, which of the following must be true?
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B.DrG < 0, DrS > 0 and DrH > 0
C.DrG > 0, DrS < 0 and DrH > 0
D.DrG < 0, DrS < 0 and DrH < 0
E.DrG > 0, DrS < 0 and DrH < 0