1) Solids have a ________ shape and are not appreciably ________.
A) definite, compressible
B) definite, incompressible
C) indefinite, compressible
D) indefinite, incompressible
E) sharp, convertible
2) A reaction that is not spontaneous at low temperature can become spontaneous at
high temperature if H is ________ and S is ________.
A) +, +
B) -, –
C) +, –
D) -, +
E) +, 0
3) The correct name for MgF2 is ________.
A) monomagnesium difluoride
B) magnesium difluoride
C) manganese difluoride
D) manganese bifluoride
E) magnesium fluoride
4) The phrase “like dissolves like” refers to the fact that ________.
A) gases can only dissolve other gases
B) polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes
C) solvents can only dissolve solutes of similar molar mass
D) condensed phases can only dissolve other condensed phases
E) polar solvents dissolve nonpolar solutes and vice versa
5) S is negative for the reaction ________.
A) Sr(NO3)2 (aq) + 2LiOH (aq) –> Sr(OH)2 (s) + 2LiNO3 (aq)
B) 2H2O (g) –> 2H2 (g) + O2 (g)
C) CH3OH (l) –> CH3OH (g)
D) LiOH (aq) –> Li+ (aq) + OH€ (aq)
E) C6H12O6 (s) –> 6C (s) + 6H2 (g) + 3O2 (g)
6) As the temperature of a reaction is increased, the rate of the reaction increases
because the ________.
A) reactant molecules collide less frequently
B) reactant molecules collide more frequently and with greater energy per collision
C) activation energy is lowered
D) reactant molecules collide less frequently and with greater energy per collision
E) reactant molecules collide more frequently with less energy per collision
7) As a gaseous element condenses, the atoms become ________ and they have
________ attraction for one another.
A) more separated, more
B) more separated, less
C) closer together, more
D) closer together, less
E) larger, greater
8) Linkage isomerism can only occur ________.
A) in cis-isomers of octahedral complexes
B) with cobalt complexes
C) with coordination number 6
D) with tetrahedral complexes
E) with ligands that have more than one possible donor atom
9) When an atom of an element undergoes beta decay, its proton count will change by
________ and its neutron count will change by ________.
A) +1, -1
B) 0, 0
C) -1, +1
D) -2, -2
E) -1, -1
10) The area of the Earth’s atmosphere 50 – 85 km above the surface is called the
________.
A) mesosphere
B) thermosphere
C) troposphere
D) stratosphere
E) exosphere
11) Which statement about atmospheric pressure is false?
A) As air becomes thinner, its density decreases.
B) Air actually has weight.
C) With an increase in altitude, atmospheric pressure increases as well.
D) The warmer the air, the lower the atmospheric pressure.
E) Atmospheric pressure prevents water in lakes, rivers, and oceans from boiling away.
12) Calculate the maximum concentration (in M) of magnesium ions (Mg+2) in a
solution that contains 0.025 M of CO3
2-. The Ksp of MgCO3 is 3.5 x 10-8.
A) 1.8 x 10-5
B) 1.4 x 10-6
C) 2.8 x 10-6
D) 3.2 x 10-10
E) 8.1 x 10-12
13) Thermodynamic Quantities for Selected Substances at 298.15 K (25 oC)
The value of G o at 25 oC for the oxidation of solid elemental sulfur to gaseous sulfur
dioxide,
S (s, rhombic) + O2(g) –> SO2 (g)
is ________ kJ/mol.
A) +395.2
B) +269.9
C) -269.9
D) +300.4
E) -300.4
14) Hydrochloric acid is a strong acid. This means that ________.
A) HCl dissociates completely to H+(aq) and Cl–(aq) when it dissolves in water
B) HCl does not dissociate at all when it is dissolved in water
C) HCl produces a gaseous product when it is neutralized
D) HCl cannot be neutralized by a weak base
E) aqueous solutions of HCl contain equal concentrations of H+(aq) and OH–(aq)
15) Based on the activity series, which one of the reactions below will occur?
A) Zn (s) + MnI2 (aq) → ZnI2 (aq) + Mn (s)
B) SnCl2 (aq) + Cu (s) → Sn (s) + CuCl2 (aq)
C) 2AgNO3 (aq) + Pb (s) → 2Ag (s) + Pb(NO3)2 (aq)
D) 3Hg (l) + 2Cr(NO3)3 (aq) → 3Hg(NO3)2 + 2Cr (s)
E) 3FeBr2 (aq) + 2Au (s) → 3Fe (s) + 2AuBr3 (aq)
16) The equilibrium expression for Kp for the reaction below is ________.
2O3 (g) 3O2 (g)
A)
B)
C)
D)
E)
17) How many isomers exist for the octahedral complex ion [Co(NH3)4F2]+?
A) 1
B) 2
C) 3
D) 4
E) 5
18) A solution is prepared by dissolving 15.0 g of NH3 in 250.0 g of water. The density
of the resulting solution is 0.974 g/mL. The molarity of NH3 in the solution is
________ M.
A) 0.00353
B) 0.882
C) 60.0
D) 3.24
E) 3.53