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1) Metal oxides are typically ________ while nonmetal oxides are typically ________.
A) basic, amphoteric
B) basic, acidic
C) amphoteric, basic
D) acidic, basic
E) amphoteric, acidic
2) Together, liquids and solids constitute ________ phases of matter.
A) the compressible
B) the fluid
C) the condensed
D) all of the
E) the disordered
3) A mixture of carbon dioxide and an unknown gas was allowed to effuse from a
container. The carbon dioxide took 1.25 times as long to escape as the unknown gas.
Which one could be the unknown gas?
A) Cl2
B) CO
C) HCl
D) H2
E) SO2
4) ________ have the lowest first ionization energies of the groups listed.
A) Alkali metals
B) Transition elements
C) Halogens
D) Alkaline earth metals
E) Noble gases
5) A 25.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M
NaOH solution. The titration curve above was obtained. The concentration of the
monoprotic acid is about ________ mol/L.
A) 25.0
B) 0.0600
C) 0.240
D) 0.120
E) 0.100
6) What is the formula of borax?
A) H3BO3
B) H2B4O7
C) P5O8
D) B2O3
E) Na2B4O7 10H2O
7) The phase diagram of a substance is given above. This substance is a ________ at 30
oC and 0.5 atm.
A) liquid
B) gas
C) solid
D) supercritical fluid
E) crystal
8) When the following equation is balanced, the coefficient of sulfur dioxide is
________.
PbS (s) + O2 (g) → PbO (s) + SO2 (g)
A) 5
B) 1
C) 3
D) 2
E) 4
9) In order to exhibit delocalized π bonding, a molecule must have ________.
A) at least two π bonds
B) at least two resonance structures
C) at least three σ bonds
D) at least four atoms
E) trigonal planar electron domain geometry
10) On a clear day at sea level, with a temperature of 25 oC, the partial pressure of N2
in air is 0.78 atm and the concentration of nitrogen in water is 5.3 x 10-4 M. When the
partial pressure of N2 is ________ atm, the concentration in water is 2.0 x 10-3 M.
A) 0.63
B) 0.68
C) 1.0
D) 3.0
E) 3.2
11) The C€Cl and C€F bond dissociation energies in CF3Cl are 339 kJ/mol and 482
kJ/mol, respectively. The maximum wavelengths of electromagnetic radiation required
to rupture these bonds are ________ and ________, respectively.
A) 45.0 nm, 307 nm
B) 742 nm, 654 nm
C) 482 nm, 248 nm
D) 353 nm, 248 nm
E) 979 nm, 953 nm
12) Calculate the percentage by mass of chlorine in PtCl2(NH3)2.
A) 23.63
B) 11.82
C) 25.05
D) 12.53
E) 18.09
13) What is the wavelength of light (nm) that has a frequency of 3.22 X 1014 s-1?
A) 932 nm
B) 649 nm
C) 9.66 X 1022 nm
D) 9.32 X 10-7 nm
E) 1.07 X 106 nm
14) For which one of the following reactions is the value of ΔH°rxn equal to ΔH°f for
the product?
A) H2O (l) + 1/2 O2 (g) → H2O2 (l)
B) N2 (g) + O2 (g) → 2NO (g)
C) 2H2 (g) + O2 (g) → 2H2O (l)
D) 2H2 (g) + O2 (g) → 2H2O (g)
E) none of the above
15) The amount of atomic O relative to O2 ________.
A) is highest in the troposphere
B) is highest in the stratosphere
C) increases with altitude in the thermosphere
D) decreases with altitude in the thermosphere
E) is essentially independent of altitude in the thermosphere
