QUESTION 1 Give the ground state electron configuration for I. [Kr]4d 10 5p 6 [K
ID: 833332 • Letter: Q
Question
QUESTION 1
Give the ground state electron configuration for I.
[Kr]4d105p6
[Kr]5s24d105p5
[Kr]5s25p6
[Kr]5s25d105p6
[Kr]5s24d105p6
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QUESTION 2
What volume is occupied by 2.50 moles of gas at 98.5 psi and 98.5 oF?
4.59 L
4.25 L
9.10 L
8.23 L
9.50 L
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QUESTION 3
H2SO4 is a ______________ and has a _________________.
base, positive net charge
salt, pH of 9
strong acid, polyatomic ion SO42-
neutral compound, polyatomic ion SO4
strong acid, metal
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QUESTION 4
An air conditioned room was kept at 70.0 oF. What temperature is this in K ?
294.3 K
123.4 K
190 K
345.3 K
34.6 K
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QUESTION 5
A complete combustion of hydrocarbons yields carbon dioxide and water vapor. Properly balance the following equation.
_____ C8H18 + _____ O2 = _____ CO2 + _____ H2O
1: 12: 8: 9
2: 25: 16: 14
3: 35: 26:16
2: 25:16:18
3: 35: 26:11
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QUESTION 6
Which of the following is an SI unit for measuring temperature?
Celsius
No correct answer is given
Pounds
Kelvin
Kilogram
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QUESTION 7
Acid-base reaction is also called a neutralization reaction. If 25.50 mL of 0.500 M H2SO4 solution is used to neutralize 57.40 mL of NaOH solution, calculate the concentration of the original NaOH solution.
NaOH(aq) + H2SO4(aq) => Na2SO4(aq) + H2O(l) (not balanced)
0.444 M
0.467 M
0.511 M
0.454 M
0.555 M
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QUESTION 8
Hydrogen gas reacts with oxygen gas to form water vapor. If 5.50 g of hydrogen gas react with 10.50 g of oxygen gas, how many grams of water vapor will be produced?
H2(g) + O2(g) => H2O(g) (not balanced)
49.2 g
16.0 g
5.91 g
25.2 g
11.8 g
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QUESTION 9
It takes 11.2 kJ of energy to raise the temperature of 145 g of benzene from 23.0 oC to 68.0 oC. What is the specific heat of benzene?
5.25 J/(g oC)
1.72 J/(g oC)
1.14 J/(g oC)
3.48 J/(g oC)
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QUESTION 10
Identify a driving force in the following reaction:
HCl (aq) + Na2CO3(aq) => ________ + _______ + _______
Formation of a precipitate
There is no driving force. This reaction will not occur.
Formation of an insoluble salt
Formation of a nonelectrolyte
More than one correct answer is given.
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QUESTION 11
Of the following, which element has the highest first ionization energy?
P
Na
Al
Cl
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QUESTION 12
How many protons, electrons, and neutrons are in an isotope of praseodymium (Pr) that has a mass number of 141?
59 protons, 59 electrons, 84 neutrons
58 protons, 58 electrons, 80 neutrons
No correct answer is given
59 protons, 59 electrons, 82 neutrons
94 protons, 94 electrons, 47 neutrons
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QUESTION 13
The number of cycles that pass through a stationary point is called
amplitude
frequency
median
area
wavelength
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QUESTION 14
The measurement 0.00159 g rounded to two significant figures would be:
0.0016 g
0.019 g
0.002 g
0.0015 g
0.0159 g
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QUESTION 15
A mixture of 1.50 g CO2(g), 1.25 g H2(g) and 1.45g O2(g) has a total pressure of 2.50 atm. Calculate the partial pressure of O2(g)?
1.02 atm
0.162 atm
0.0233atm
1.00 atm
0.234 atm
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QUESTION 16
Which of the following classifications best describes element number 85, astatine?
alkali metal
metalloid
metal
nonmetal
noble gas
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QUESTION 17
Which of the following (with specific heat capacity provided) would show the smallest temperature change upon gaining 150.0 J of heat?
50.0 g Al, CAl = 0.903 J/g.
[Kr]4d105p6
[Kr]5s24d105p5
[Kr]5s25p6
[Kr]5s25d105p6
[Kr]5s24d105p6
Explanation / Answer
1)[Kr]5s24d105p5
3) strong acid, polyatomic ion SO42-
5)2: 25:16:18
6)Kelvin
12)59 protons, 59 electrons, 82 neutrons
16)nonmetal
18)dinitrogen pentoxide
21)
n = 2, l = 1, ml = +1
22) +3
23)P
n = 3, l =3, ml = -2
26) AgCl
27) 2
n = 2, l = 1, ml = +1
22) +3
23)P
n = 3, l =3, ml = -2
26) AgCl
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