Transcript Question 1 - Alfred State College

Question 1
What are the two half reactions that show how many electrons
are gained or lost by each species in the reaction: Ni2+(aq) +
Mg(s)  Ni(s) + Mg2+(aq)?
A)
Ni2+(aq) + e–  Ni(s) and Mg(s)  Mg2+(aq) + e–
B)
Ni2+(aq) + 2 e–  Ni(s) and Mg(s)  Mg2+(aq) + 2 e–
C)
Ni2+(aq)  Ni(s) + 2 e– and Mg(s) + 2 e–  Mg2+(aq)
D)
Ni2+(aq)  Ni(s) + e– and Mg(s) + e–  Mg2+(aq)
E)
Ni2+(aq) + 2 e–  Ni(s) and Mg(s) + 2 e–  Mg2+(aq)
Question 1
What are the two half reactions that show how many electrons
are gained or lost by each species in the reaction: Ni2+(aq) +
Mg(s)  Ni(s) + Mg2+(aq)?
A)
Ni2+(aq) + e–  Ni(s) and Mg(s)  Mg2+(aq) + e–
B)
Ni2+(aq) + 2 e–  Ni(s) and Mg(s)  Mg2+(aq) + 2 e–
C)
Ni2+(aq)  Ni(s) + 2 e– and Mg(s) + 2 e–  Mg2+(aq)
D)
Ni2+(aq)  Ni(s) + e– and Mg(s) + e–  Mg2+(aq)
E)
Ni2+(aq) + 2 e–  Ni(s) and Mg(s) + 2 e–  Mg2+(aq)
Question 2
A compound that gains
electrons while causing
another compound to be
oxidized is called a(n) _____.
Question 2
A compound that gains
electrons while causing
another compound to be
oxidized is called a(n) _____.
OXIDIZING AGENT
Question 3
When pressure decreases, in which direction does the
equilibrium shift?
A)
The equilibrium shifts to the side with
fewer moles of gas.
B)
The equilibrium shifts to the side with
more moles of gas.
C)
The equilibrium does not shift.
D)
The equilibrium shifts always shifts to the
right.
E)
The equilibrium shifts always shifts to the
left.
Question 3
When pressure decreases, in which direction does the
equilibrium shift?
A)
The equilibrium shifts to the side with
fewer moles of gas.
B)
The equilibrium shifts to the side with
more moles of gas.
C)
The equilibrium does not shift.
D)
The equilibrium shifts always shifts to the
right.
E)
The equilibrium shifts always shifts to the
left.
Question 4
The definition of an Arrhenius acid is
A)
a compound that contains hydroxide
and dissolves in water to form –OH.
B)
a compound that is a proton donor.
C)
a compound that is a proton
acceptor.
D)
a compound that contains a
hydrogen atom and dissolves in
water to form a hydrogen ion, H+.
Question 4
The definition of an Arrhenius acid is
A)
a compound that contains hydroxide
and dissolves in water to form –OH.
B)
a compound that is a proton donor.
C)
a compound that is a proton
acceptor.
D)
a compound that contains a
hydrogen atom and dissolves in
water to form a hydrogen ion, H+.
Question 5
The [H3O+] in a cabernet sauvignon wine is
5.9 x 10–4 M. What is the [–OH] in this wine?
A)
B)
C)
D)
E)
5.9 x 10–4 M –OH
1.0 x 10–7 M –OH
5.9 x 10–18 M –OH
1.7 x 10–11 M –OH
1.0 x 10–14 M –OH
Question 5
The [H3O+] in a cabernet sauvignon wine is
5.9 x 10–4 M. What is the [–OH] in this wine?
A)
B)
C)
D)
E)
5.9 x 10–4 M –OH
1.0 x 10–7 M –OH
5.9 x 10–18 M –OH
1.7 x 10–11 M –OH
1.0 x 10–14 M –OH
Question 6
What is the molarity of an HNO3 solution if
24.1 mL of a 0.250 M Ba(OH)2 solution are
needed to titrate a 15.0 mL sample of the
acid?
A) 0.402 M HNO3
B) 0.156 M HNO3
C) 0.311 M HNO3
D) 0.201 M HNO3
E) 0.803 M HNO3
Question 6
What is the molarity of an HNO3 solution if
24.1 mL of a 0.250 M Ba(OH)2 solution are
needed to titrate a 15.0 mL sample of the
acid?
A) 0.402 M HNO3
B) 0.156 M HNO3
C) 0.311 M HNO3
D) 0.201 M HNO3
E) 0.803 M HNO3
Question 7
What is the estimated age of an artifact that
has 1/16 of the amount of carbon-14 (relative
to carbon-12) compared to living organisms?
(C-14 t1/2 = 5,730 years)
A) 1,430 years
B) 5,730 years
C) 17,200 years
D) 22,900 years
E) 28,700 years
Question 7
What is the estimated age of an artifact that
has 1/16 of the amount of carbon-14 (relative
to carbon-12) compared to living organisms?
(C-14 t1/2 = 5,730 years)
A) 1,430 years
B) 5,730 years
C) 17,200 years
D) 22,900 years
E) 28,700 years
Question 8
Which nuclear equation is an example of nuclear fission?
A)
27Al
+ 4He 
13
B)
2
239Np
7
15
0
+1
 239Pu + 0e
93
D)
+ 1n
15O  15N + 0e
8
C)
30O
94
-1
235U + 1n  137Te + 97Zr +
92
0
52
40
2 1n
0
Question 8
Which nuclear equation is an example of nuclear fission?
A)
27Al
+ 4He 
13
B)
2
239Np
7
15
0
+1
 239Pu + 0e
93
D)
+ 1n
15O  15N + 0e
8
C)
30O
94
-1
235U + 1n  137Te + 97Zr +
92
0
52
40
2 1n
0
Question 9
The equation shown below is an example of
what type of nuclear reaction?
239Np
93
 239Pu + 0e
94
-1
Question 9
The equation shown below is an example of
what type of nuclear reaction?
239Np
 239Pu + 0e
93
BETA DECAY
94
-1
Question 10
What is the bond angle of the C-O-H shown
by arrow 3 in the structure below?
Question 10
What is the bond angle of the C-O-H shown
by arrow 3 in the structure below?
109.5°
Question 11
Which compound has the highest boiling
point?
A) HOCH2CH2OH
B) CH3NHCH2CH3
C) CH3CO2CH2CH3
D) CH3NHCH2OH
E) NaCH3COO
Question 11
Which compound has the highest boiling
point?
A) HOCH2CH2OH
B) CH3NHCH2CH3
C) CH3CO2CH2CH3
D) CH3NHCH2OH
E) NaCH3COO
Question 12
What is the functional group shown in
the molecule below?
Question 12
What is the functional group shown in
the molecule below?
ESTER