CHEM 219 PRINCIPLES OF ORGANIC CHEMISTRY MODULE 1 - 8 EXAM & FINAL EXAM Portage Learning

CHEM 219

PRINCIPLES OF ORGANIC CHEMISTRY


MODULE 1 - 8 EXAM & FINAL EXAM

Portage Learning



Inside you will get:
#### 1. Multiple-Choice Questions #### 2.

True/False Questions #### 3. Short-Answer

Questions

#### 4. Drawings and Mechanism Problems

#### 5. Long-Answer or Essay Questions (Occasional)

#### 6. Expert-Level Rationales (Portage CHEM 219 – 2025 Ready)

,Table of Contents

CHEM 219 Module 1 Exam ................................................... 3

CHEM 219 Module 2 Exam ................................................... 13

CHEM 219 Module 3 Exam ................................................. 24

CHEM 219 Module 4 Exam ................................................. 22

CHEM 219 Module 5 Exam ................................................. 42

CHEM 219 Module 6 Exam ................................................. 65

CHEM 219 Module 7 Exam ................................................. 87

CHEM 219 Module 8 Exam ............................................... 100

CHEM 219 FINAL EXAM ..................................................... 117

, CHEM 219 Module 1 Exam
Question 1
On a piece of scratch paper, write out the Lewis Dot Diagram for each of the
indicated elements and then complete the following table for each:




1. Bromine
2. Silicon
3. Carbon
4. Sodium
5. Selenium




*Write number using number (1, 2, 3 etc.) rather than typing out the
number (one, two, three).
Answer


Element Total Number The number of The number of The number of
of Valence lone pairs of Unpaired bonds the
Electrons electrons Electrons atom will form


Br 7 3 1 1

Si 4 0 4 4

C 4 0 4 4

Na 1 0 1 1

Se 6 2 2 2


**Expert Rationale:**

The Lewis Dot Diagram for each atom visualizes their valence
electrons based on their group number in the periodic table.
Bromine (Br, Group 17) has 7 valence electrons, typically arranged
as three lone pairs and one unpaired electron, allowing it to form

, one bond. Silicon (Si, Group 14) and carbon (C, Group 14) each have
4 valence electrons, all unpaired, signifying the ability to form 4
bonds. Sodium (Na, Group 1) has one valence electron, which is
unpaired, so it generally forms one ionic