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1

The valence shell electrons are?
A)The inner most shell of electrons.
B)The outer most shell of electrons.
C)Only those involved in a bond to another atom.
D)Only those NOT involved in a bond to another atom.
E)All electrons around the atom.
2

Which atom has the following ground state configuration?
[Ne]3s23p4
A)Oxygen.
B)Silicon.
C)Phosphorus.
D)Sulfur.
E)Chlorine.
3

Which of the following statements about Ionic bonds is false?
A)Ionic bonds are produced when cations and anions are held together by strong electrostatic (or coulombic) forces.
B)Cations are formed from atoms with low ionization energies.
C)Anions are formed from atoms with high electron affinities.
D)Ionic bonds are common in organic compounds.
E)Ionic bonds are common in inorganic compounds.
4

Covalent bonds differ from Ionic bonds by...
A)Sharing electrons equally between atoms.
B)Gaining electrons from the other atom.
C)Losing electrons to the other atom.
D)There is no difference between the two.
E)Occurs between metals and non-metals.
5

The octet rule represents...
A)Stable electronic configurations for second row elements.
B)A common trend in the electronic configuration of the noble gasses.
C)A limit on the number of bonds that can be formed, i.e. only four bonds.
D)A and B.
E)A and C.
F)B and C.
G)All of the above.
6

Multiple bonds (i.e. double or triple) are?
A)Uncommon in organic molecules.
B)Are not possible in the Lewis concepts of bonding.
C)Still satisfy the octet rule.
D)Can only occur between carbon atoms.
E)Can be Ionic bonds.
7

The best definition of Polar Covalent Bonds is?
A)A bond involving atoms with formal charges.
B)A bond involving atoms with different electronegativities.
C)A bond involving atoms of different sizes.
D)A bond involving atoms with different numbers of electrons.
E)A bond involving atoms with multiple bonds.
8

What is the formal charge on the N atom in nitromethane, CH3NO2?
A)+1
B)0
C)-1
9

Which of the following is the best Lewis structure for HCO3-
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_9a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (13.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_9b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_9c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_9d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
10

The following are examples of?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_10.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (15.0K)</a>
A)Condensed structural formula.
B)Molecular formula.
C)Bond-line formula.
D)Complete chemical formula.
11

Structural isomers are?
A)Compounds with different types of atoms.
B)Compounds with the same types of atoms but different numbers of those atoms.
C)Compounds with the same types and numbers of atoms bonded in a different arrangement.
D)Compounds with the same types and numbers of atoms bonded in the same arrangement.
12

Which of the following is not a resonance structure of
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_12.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (15.0K)</a>
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_12a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (15.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_12b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (15.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_12c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (15.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_12d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (15.0K)</a>
13

According to the VSEPR model the carbon atoms in bromobutane have what shape?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_13.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
A)Tetrahedral.
B)Pyramidal.
C)Bent.
D)Linear.
14

The molecule with the largest dipole moment is?
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_14a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_14b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_14c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_14d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (14.0K)</a>
15

Which of the following reactions shows the correct use of "curly arrows"?
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_15a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (17.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_15b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (17.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_15c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (16.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/1_15d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (17.0K)</a>
16

There are a number of definitions for acids and bases. Match the following definitions to the correct theory.

TheoryDefinition
A. ArrheniusI - donates or accepts protons
B. Bronsted-LowryII - donates or accepts a lone pair of electrons
C. LewisIII - donates a proton or a hydroxide
A)A-I, B-II, C-III
B)A-I, B-III, C-II
C)A-II, B-III, C-I
D)A-II, B-I, C-III
E)A-III, B-I, C-II
F)A-III, B-II, C-I
17

The correct equation for the Ka for an acid is?
A)Ka = [HA][A-] / [H+]
B)Ka = [HA] [H+] / [A-]
C)Ka = [A-] / [HA][H+]
D)Ka = [H+] / [HA][A-]
E)Ka = [H+][A-] / [HA]
18

The pKa of an acid is more commonly used to compare the strength of acids where stronger acids have a lower pKa. It is related to the Ka by: pKa = -logKa. Rank the following compounds in order of their decreasing pKa for the hydrogen in bold.
A)A > B > C
B)A > C > B
C)B > A > C
D)B > C > A
E)C > A > B
F)C > B > A
19

In the Bronsted-Lowry theory of acids, an acid will lose a proton (H+) and leave behind the conjugate base of the acid. The conjugate base of a strong acid is?
A)A strong base.
B)Neutral.
C)A weak base.
20

There are a number of structural features which effect the pKa of an acid. These are?
A)Electronegativity.
B)The strength of the bond to the acidic hydrogen atom.
C)Inductive effects.
D)Resonance delocalization.
E)A and B.
F)A and C.
G)B and D.
H)All of the above.







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