CHEM 219 MODULE 1 PROBLEM SET QUESTIONS & ANSWERS 2026… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
CHEM 219 Module 1
Problem Set Questions
& Answers 2026-2027 |
Complete Study Guide
Verified Answers Exam Ready With Rationales
39 QUESTIONS
DOCUMENT OVERVIEW
This document provides 39 exam questions along with correct answers and explanations,
making it an essential study guide for chemistry students. Covering fundamental concepts
in chemical bonding and molecular structure, the resource is suitable for exam preparation,
course review, and certification readiness. Students can effectively utilize this guide to
reinforce their understanding and ensure mastery of key chemistry principles.
CONTENTS
Lewis Structures and Bonding Q1–Q8
Isomerism and Structural Representation Q9–Q16
Ionic and Covalent Compounds Q17–Q25
Resonance and Molecular Geometry Q26–Q31
Page 1
, Atomic Orbitals and Bond Formation Q32–Q39
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 39
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.
Oxygen
Carbon
Hydrogen
Nitrogen
CORRECT 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
Q2 QUESTION 2 OF 39
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.
a. Br and Br
b. K and Cl
c. P and Cl
d. C and O
e. Na and Br
Page 2
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
CHEM 219 Module 1
Problem Set Questions
& Answers 2026-2027 |
Complete Study Guide
Verified Answers Exam Ready With Rationales
39 QUESTIONS
DOCUMENT OVERVIEW
This document provides 39 exam questions along with correct answers and explanations,
making it an essential study guide for chemistry students. Covering fundamental concepts
in chemical bonding and molecular structure, the resource is suitable for exam preparation,
course review, and certification readiness. Students can effectively utilize this guide to
reinforce their understanding and ensure mastery of key chemistry principles.
CONTENTS
Lewis Structures and Bonding Q1–Q8
Isomerism and Structural Representation Q9–Q16
Ionic and Covalent Compounds Q17–Q25
Resonance and Molecular Geometry Q26–Q31
Page 1
, Atomic Orbitals and Bond Formation Q32–Q39
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 39
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.
Oxygen
Carbon
Hydrogen
Nitrogen
CORRECT 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
Q2 QUESTION 2 OF 39
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.
a. Br and Br
b. K and Cl
c. P and Cl
d. C and O
e. Na and Br
Page 2
