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1) The correct name of H2CO3 is ________.
A) hydrogen carbide
B) hydrogen carbonate ion
C) carbonate ion
D) carbonic acid
E) carboxylic acid
2) A mixture of Xe, Kr, and Ar has a total pressure of 6.69 atm. What is the mole
fraction of Kr if the partial pressures of Xe and Ar are 1.92 atm and 2.75 atm,
respectively.
A) 0.302
B) 0.287
C) 0.411
D) 0.259
E) 0.698
3) Which one of the following beverages originally contained lithium salts?
A) Coca-Cola®
B) Pepsi-Cola®
C) Gatorade®
D) Kool-Aid®
E) Seven-Up®
4) A solution is prepared by dissolving calcium chloride in water and diluting to 500.0
mL. If this solution contains 44 ppm chloride ions, the concentration of calcium ions is
________ ppm.
A) 44
B) 88
C) 22
D) 11
E) 500
5) There are ________ orbitals in the second shell.
A) 1
B) 2
C) 4
D) 8
E) 9
6) Which of the following would have to lose two electrons in order to achieve a noble
gas electron configuration?
A) O, Se
B) Sr
C) Na
D) Br
E) Sr, O, Se
7) When two atoms of 2H are fused to form one atom of 4He, the total energy evolved is
3.83 x 10-12 J. What is the total change in mass (in kg) for this reaction? (c = 3.00 x 108
m/s)
A) 1.28 x 10-17
B) 4.26 x 10-26
C) 3.45 x 108
D) 1.15
E) 4.26 x 10-29
8) Of the following substances, ________ has the highest boiling point.
A) HOCH2CH2CH2OH
B) CH3CH2OH
C) C4H10
D) N2
E) Cl2
9) The compound below is an ________.
A) alkyne
B) alkene
C) alkane
D) aromatic compound
E) olefin
10) Atoms containing radioactive nuclei are called ________.
A) radionuclides
B) radioisotopes
C) nucleons
D) nuclides
E) radioisophores
11) The value of Keq for the following reaction is 0.16:
A (g) + B (g) C (g) + D (g)
The value of Keq at the same temperature for the reaction below is ________.
3C (g) + 3D (g) 3A (g) + 3B (g)
A) 2.4 x 102
B) 2.1
C) 4.1 x 10-3
D) 5.3 x 10-2
E) 6.3
