-IF you don't mind me posting some questions up every now and then, that would be great if you could answer them!! lol
--IF you do not 100% know the answer, please don't reply.

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---When posting, put the question # and the answer!!
~~~~ If you can give me the answers to my questions, I will train for you at night, over 150k exp: each night!!! We will talk about it over Aim or MSN If you want it done. If you just want to answer questions, thats perfectly alright with me, lol...1)
A molecule with a single covalent bond is?
A. CO2
B. N2
C. CO
D. Cl2
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2)
Which of these elements does not exist as a diatomic molecule?
A. H
B. F
C. I
D. Ne
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3)
How many valence electrons does an atom of any halogen have?
A. 1
B. 2
C. 7
D. 4
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4)
What is the total number of covalent bonds normally associated with a single corbon atom in a compound?
A. 3
B. 1
C. 8
D. 4
E. 2
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5)
How many unshared pairs of electrons does the nitrogen atom in ammonia (NH3) possess?
A. 2
B. 4
C. 3
D. 1
E. 5
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6)
What causes dipole interactions?
A. Motion of electrons
B. attraction between ions
C. sharing of electron pairs
D. attraction between polar molecules
E. bonding of a covalently-bonded hydrogen to an unshared electron pair
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7)
Once formed, how are coordinate covalent bonds different from normally formed covalent bonds?
A. they are weaker
B. They are stronger
C. they are more ionic in character
D. there is no difference
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According to VSEPR theory, molecules adjust their shapes to keep which of the following as far apart as possible?
A. pairs of valence electrons
B. mobile electrons
C. the electrons closest to the nuclei
D. inner shell electrons
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9)
A diatomic molecule with a triple covalent bond is?
A. O2
B. F2
C. H2
D. N2
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10)
What is the electron configuration of the calcium ion?
A. 1s2 2s2 2p6 3s2 3p4 4s2
B. 1s2 2s2 2p6 3s2 3p6
C. 1s2 2s2 2p6 3s2 3p5 4s1
D. 1s2 2s2 2p6 3s2
E. 1s2 2s2 2p6 3s2 3p10
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11)
A compound held together by ionic bonds is called a?
A. polar compound
B. triatomic molecule
C. diatomic molecule
D. salt
E. covalent molecule
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12)
How many covalent bonds are there in covalently bonded molecule contraining 1 phosphorus atom and 3 chlorine atoms?
A. 1
B. 6
C. 2
D. 3
E. 4
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13)
Why do atoms share electrons in covalent bonds?
A. to attain a noble-gas electron configeration
B. to increase their atomic numbers
C. to become more polar
D. to become ions and attract each other
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14)
When one atom contributes both bonding electrons in a single covalent bond, the bond is called a?
A. ordinary covalent bond
B. unequal covalent bond
C. ionic covalent bond
D. one-sided covalent bond
E. coordinate covalent bond
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15)
Which of the following particles are free to drift in metals?
A. protons
B. electrons
C. cations
D. pions
E. neutrons
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16)
What is the electron configeration of the oxide ion (O2-)?
A. 1s2 2s2 2p6
B. 1s2 2s2 2p4
C. 1s2 2s2 2p5
D. 1s2 2s2 2p2
E. 1s2 2s2
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17)
What is thought to cause the dispersion forces?
A. sharing of electron pairs
B. motion of electrons
C. attraction between ions
D. attraction between polar molecules
E. differences in electronegativity
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18)
Which of the following electron configurations gives the correct arrangement of the four valence electrons of carbon atom in the molecule methane (CH4)?
A. 2s1 2p3
B. 2s1 2p2 3s1
C. 2s1 2p1 3s1
D. 2s2 2p2
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19)
Which of the following is the name given to the pairs of valence electrons that do not participate in bonding in diatomic oxygen molecules?
A. inner pair
B. outer pair
C. unshared pair
D. unvalenced pair
E. bound pair
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20)
Which type of solid has the highest melting point?
A. nonmetallic solid
B. network solid
C. metal
D. ionic solid
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21)
What is the basis of a metallic bond?
A. the attraction of metal ions for mobile electrons
B. the attraction of oppositely-charged ions
C. the attraction between neutral metal atoms
D. the neutralization of protons by electrons
E. the sharing of two valence electrons between two atoms
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22)
How many valence electrons are transferred from the nitrogen atom to potassium in the formation of the compound, potassium nitride?
A. 2
B. 0
C. 1
D. 3
E. 4
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23)
The octet rule states that, in chemical compounds, atoms tend to have?
A. more protons than electrons
B. more electrons than protons
C. eight electrons in their principal energy level
D. the electron configuration of a noble gas
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24)
How many electrons are shared in a single covalent bond?
A. 2
B. 8
C. 3
D. 4
E. 1
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25)
Which of the forces of molecular attraction is the strongest?
A. dispersion forces
B. dipole interaction
C. hydrogen bonds
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26)
What is the name given to the electrons in the highest occuppied energy level of an atom?
A. affinity electrons
B. anions
C. orbital electrons
D. cations
E. valence electrons
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27)
What does the term "coordination number" refer to?
A. the number of like-charged ions surrounding a particular ion
B. the number of charges floating free in a crystal
C. the number of atoms in a particular formula unit
D. the total number of valence electrons in an atom
E. the number of oppositely-charged ions surrounding a particular ion
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28)
The melting temperature of potassium chloride is relatevely____
A. variable
B. high
C. low
D. Potassium chloride does not melt.
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29)
The shape of the carbon tetrachloride molecule is called?
A. square
B. planar
C. four-cornered
D. tetrahedral
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30)
Which of the following covalent bonds is the most polar?
A. C - C
B. C - S
C. C - Br
D. C - Cl
E. C - H