Covalent Bonding Answers
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1
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Which structure shows the correct electron arrangement in CCl4?
A
A central upper C is single bonded to upper H above, below, and to the left, and single-bonded to upper C l to the right. The C l has three pairs of electron dots, above, right, and below.
B
A central upper C is single bonded to upper C l to the top, bottom, and left; those upper C l atoms have three pairs of electron dots on the sides away from the bond. The C is also single bonded to an upper H to the right.
C
A central upper C is single bonded to upper H above and below, and to upper C l to the left and right. The C l have three pairs of dots, above, below, and to the side opposite the bond.
D
A central upper C is single bonded to upper C l above, right, left, and below. All the C l atoms have 3 pair of electron dots, on the three sides that do not have the bond.
2
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A solid compound in a sealed container was kept at a very low temperature in a freezer. When placed at room temperature, the substance quickly turned into a liquid. This compound is most likely which of the following?
A
an ionic compound because it has a low boiling pointB
a covalent compound because it has a low boiling pointC
an ionic compound because it has a low melting pointD
a covalent compound because it has a low melting point3
Which compound contains only a nonpolar covalent molecule?
A
O2B
HClC
H2OD
NO34
How many valence electrons are available for bonding in bromine (Br)?
A
oneB
twoC
fiveD
seven5
What is the best reason for the difference in properties of LiCl and C6H14O?
A
LiCl and C6H14O have different atomic masses.B
Cl and O belong to different groups of the periodic table.C
One compound is ionic, and the other is metallic.D
One compound is covalent, and the other is ionic.Did you find these answers helpful?
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