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chem #6
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The lewis dot symbol for the S2- ion is
S (8 dots) 2-
Which of these compounds is most likely to be ionic?
KF
Which of these compounds is most likely to be covalent?
SF4
Select the strongest bond in the following group
C--- (triple bond) N
The total number of lone pairs in NCl3 is
10
The lewis structure for CS2 is?
..S.. = C = ..S..
Select the correct lewis structure for nitrogen trifluoride, NF3.
look over the test
the formal charge on the sulfur atom in the resonance structure of sulfur dioxide which has one single bond and one double bond is
+1
6-2-1/2(6)
6-2-3
+1
Which of these elements is most likely to exhibit an expanded octet in its compounds?
S
Lewis theorized the octet rule to describe chemical bonding where atoms lose, gain, or share electrons in order to achieve a noble gas configuration
True
False
True
according to the VSEPR theory, the shape of the SO3 molecule is
Trigonal planar
What is the molecular shape of the CH4 molecule
Tetrahedral
What is the molecular shape of the H2O molecule?
bent
According to the VSEPR theory, the molecular shape of ammonia is
Trigonal pyrimidal
What is the molecular shape of SiF6 2- as predicted by the VSEPR theory?
Octahedral
What is the approximate bond angle for CCl4?
109.5
What is the approximate bond angle for NH3?
107 exception
Indicate the type of hybrid orbitals used by the central atom in CCl4
sp3
Indicate the type of hybrid orbitals used by the central atom in SF6
sp3d2
Determine the shape of PCl3 and then decide on the approximate hybridization of phosphorus in this molecule. (phosphorus is the central atom)
sp3
The number of pi bonds in the molecule
H H
_ _
H-C=-C-C-C-C=-C-H
_ _
H H
4
According to molecular orbital theory, the twelve outermost electrons in the o2 molecule are distributed as follows:
8 in bonding MOS, 4 in antibonding MOS
Indicate the type of hybrid orbitals used by the central atom in PCl3
sp3
How many bonds should a fluorine atom form?
1
Author
dee3215
ID
16905
Card Set
chem #6
Description
lewis dot symbols
Updated
4/30/2010, 4:16:48 AM
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