Valence Electrons - General Chemistry - Quiz, Exercises for Chemistry. Alliance University

Chemistry

Description: Valence Electrons, Lewis Dot Structure, Octet Rule, Greater Electronegativity, Assign Formal Charges, Chemical Structure, Necessary Lone Pairs, Multiple Bonds, Type of Hybridization. This quiz has got few questions and empty space for answers as well. Hints to questions in this quiz are given above.
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1. Draw a reasonable Lewis Dot Structure for each of these species. Show all valence
electrons. None of these require you to violate the octet rule. (16 points)
CO2 NH3 HCN HOOH
2. Draw a reasonable Lewis Dot Structure for each of these species. Show all valence
electrons. Each of these requires you to violate the octet rule. (12 points)
ClF3 SF5- BeF2
3. Draw a Lewis Dot Structure for the [IO2]- ion and include any resonance if necessary. Make
sure your structure is ideal in terms of formal charges (Oxygen has a greater electronegativity
than Iodine). (10 points)
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4. Assign formal charges to the elements in each of the structures below. (9 points)
A
B
C
Formal Charge
C
N
O
5. (3 pts) The best Lewis structure for CNO is which one above? A B C
6. Complete the chemical structure below by adding any necessary lone pairs and multiple
bonds. Next, identify the type of hybridization present at each Carbon and at each Oxygen
atoms. (10 points)
Cl C
H
H
C
H
C
O C
H
H
C
O
OH
H
Draw arrows to each Carbon and each Oxygen and indicate hybridization.
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