1) A valid Lewis structure of ________ cannot be drawn without violating the octet
rule.
A) PO4
3-
B) SiF4
C) CF4
D) SeF4
E) NF3
2) Alkenes have the general formula ________.
A) CnH2n
B) CnH2n-2
C) CnH2n+2
D) CnHn
E) C2nHn
3) Of the following substances, only ________ has London dispersion forces as the
only intermolecular force.
A) CH3OH
B) NH3
C) H2S
D) Kr
E) HCl
4) The de Broglie wavelength of a bullet (7.5 g) traveling at 700 m/s is ________ m.
A) 7.7 X 1033
B) 1.3 X 10-34
C) 6.2 X 10-29
D) 1.3 X 10-27
E) 1.3 X 10-23
5) How many structural isomers (include all types except optical) can be drawn for
C5H10?
A) 5
B) 6
C) 7
D) 10
E) 12
6) The ions Ca2+ and PO4
3- form a salt with the formula ________.
A) CaPO4
B) Ca2(PO4)3
C) Ca2PO4
D) Ca(PO4)2
E) Ca3(PO4)2
7) The normal boiling point of the substance with the phase diagram shown above is
________ oC.
A) 10
B) 20
C) 30
D) 40
E) 50
8) The equilibrium-constant expression for the reaction
Ti (s) + 2Cl2 (g) TiCl4 (l)
is given by
A)
B)
C)
D) [Cl2 (g)]-2
E)
9) A ________ ΔH corresponds to an ________ process.
A) negative, endothermic
B) negative, exothermic
C) positive, exothermic
D) zero, exothermic
E) zero, endothermic
10) Which of the following is the nitride ion?
A) N3-
B) N3
–
C) NO3
–
D) N–
E) NO2
–
11) Magnesium reacts with a certain element to form a compound with the general
formula MgX. What would the most likely formula be for the compound formed
between potassium and element X?
A) K2X
B) KX2
C) K2X3
D) K2X2
E) KX
12) With which ion will the mercury ion form an insoluble salt?
A) phosphate
B) nitrate
C) sulfate
D) chloride
E) acetate
13) What was the purpose of the Manhattan project?
14) Each molecular orbital can accommodate, at most, two electrons with their spins
paired. This is called the ________.
15) There are ________ mol of bromide ions in 0.700 L of a 0.400 M solution of AlBr3.
16) Living organisms must expend energy to counter any increase in ________.
17) If the reaction quotient Q for a reaction is less than the value of the equilibrium
constant K for that reaction at a given temperature, ________ must be converted to
________ for the system to reach equilibrium.
18) Most transition metal ions contain partially occupied ________ subshells.