CHEM 219 Module 1 Problem Set questions and answers 2026/2027

12/14/23, 8:42 PM Module 1 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher


Module 1 Problem Set
Due No due date Points 10 Questions 21 Time Limit None




Attempt History
Attempt Time Score

LATEST Attempt 1 1,135 minutes 10 out of 10



Score for this quiz: 10 out of 10
Submitted Jul 25 at 8:42pm
This attempt took 1,135 minutes.


Question 1 pts



On a piece of scratch paper, write out the Lewis Dot Diagram for each of
the indicated elements and determine the following for each:

a) The number of Lone Pairs the atom possesses in its valence
shell.
b) The number of Unpaired Electrons the atom possesses in its
valence shell.
c) The number of bonds the atom will form.



1. Oxygen
2. Carbon
3. Hydrogen
4. Nitrogen


Your Answer:
1. O
2. Two lone pairs
3. Two unpaired electrons
4. two bonds


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,12/14/23, 8:42 PM Module 1 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher




Question 2 pts




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, 12/14/23, 8:42 PM Module 1 Problem Set: Principles of Organic Chemistry with Lab-2021-Gallaher




Classify the bonding between the given pairs of atoms as ionic, covalent,
or polar covalent. Use the table of electronegativities shown below to help
with the classification.



2. C
3. Zero lone pairs
4. Four unpaired electrons
5. four bonds



3. H
4. Zero lone pairs
5. One unpaired electron
6. one bond



4. N
5. One lone pair
6. three unpaired electrons
7. three bonds




Answer:



Oxygen – a) 2 b) 2 c) 2

Carbon – a) 0 b) 4 c) 4

Hydrogen- a) 0 b) 1 c) 1

Nitrogen – a) 1 b) 3 c) 3




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