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How many places on the ligand EDTA can simultaneously bind to a single metal atom?
A) 1
B) 2
C) 3
D) 4
E) 6
Which Group 3A element has the most stable +1 oxidation state?
A) B
B) Al
C) Ga
D) In
E) Tl
The reduction potential to the metal of Ba2+is -1.57 V and that of Cu2+is +0.34 V. The
cell potential for the reaction Ba(s) + Cu2+(aq) --> Ba2+(aq) + Cu(s) is therefore:
A) (-1.57) + (0.34)
B) 2 x (-1.57) + 2 x (0.34)
C) (+1.57) + (-0.34)
D) (-1.57) + (+0.34)
E) (+1.57) + (+0.34)
The Cl—Kr—Cl bond angle in KrCl4is closest to
A)90°
B)109°
C)120°
D)150°
E)360°
Use the potential energy diagram shown to answer the following:
Which letter shows the change in energy for the overall reaction?
A)a
B)b
C)c
D)d
E)e
Write a balanced equation for each of the following:
The smallest ionization energies are found in the ____________ ___________ region
of the periodic table.
A) upper left
B) upper right
C) lower left
D) lower right
E) impossible to tell
The reaction A --> B + C is known to be zero order in A with a rate constant of 5.0
x10-2mol/L·s at 250C An experiment was run at 250C where [A]0= 1.0 x10-3M.The
integrated rate law is
A)[A] = kt
B)[A] - [A]0= kt
C)
D)
E)[A]0- [A] = kt
The monomers that make up a starch molecule are:
A) I, III, V
B) II, IV, VI
C) I, III, VI
D) II, IV, V
E) I, IV, VI
Given the following Lewis structure:
How many electrons are shared between carbons 1 and 2?
A)0
B)2
C)4
D)6
E)8
The heat of vaporization for 1.0 mole of water at 100.°C and 1.0 atm is 40.56kJ/mol.
Calculate S for the process H2O(l) --> H2O(g) at 100.°C.
A) 109 J/K mol
B) -109 J/K mol
C) 406 J/K mol
D) -406 J/K mol
E) none of these
The following questions refer to the reaction shown below:
What is the rate law for this reaction?
A)Rate = k[A][B]
B)Rate = k[A]2[B]
C)Rate = k[A][B]2
D)Rate = k[A]2[B]2
E)Rate = k[B]
Consider the following reactions:
a) Al3++ 6H2O Al(OH2)6
3+
b) Al(OH2)6
3+ Al(OH)(OH2)5
2++ H+
c) OCl-+ H2O HOCl + OH-
d) CN-+ H+ HCN
e) none of these
Which is associated with the definition of Ka?
A) a
B) b
C) c
D) d
E) e
