Physical Science
Quarter 3 – Module 3:
Polarity of Molecules and Its
Properties
ii
,Introductory Message
For the learner:
Welcome to the Physical Science 11/12 Alternative Delivery Mode (ADM) Module on
Properties of Molecules based on its Polarity!
The hand is one of the most symbolic parts of the human body. It is often used to
depict skill, action and purpose. Through our hands we may learn, create and
accomplish. Hence, the hand in this learning resource signifies that you as a learner is
capable and empowered to successfully achieve the relevant competencies and skills
at your own pace and time. Your academic success lies in your own hands!
This module was designed to provide you with fun and meaningful opportunities for
guided and independent learning at your own pace and time. You will be enabled to
process the contents of the learning resource while being an active learner.
The following are some reminders in using this module:
1. Use the module with care. Do not put unnecessary mark/s on any part of the
module. Use a separate sheet of paper in answering the exercises.
2. Don’t forget to answer What I Know before moving on to the other activities
included in the module.
3. Read the instruction carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking your answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are through with it.
7. Write your answers on the answer sheet
8. Use black or blue ink only in answering
If you encounter any difficulty in answering the tasks in this module, do not
hesitate to consult your teacher or facilitator. Always bear in mind that you are not
alone.
We hope that through this material, you will experience meaningful learning and
gain deep understanding of the relevant competencies. You can do it!
iii
, What I Need to Know
This module was designed and written with you in mind. It is here to help you
master the concept of polarity of molecules. The scope of this module permits it to be
used in different learning situations. The language used recognizes the varied
vocabulary level of students. The lessons are arranged to follow the standard sequence
of the course. But the order in which you read them can be changed to correspond
with the textbook you are now using.
After going through this module, you are expected to:
1. define solubility, miscibility and polarity;
2. identify the different types of intermolecular forces of attraction ; 3.
explain how polarity of molecules related to its properties
What I Know
Choose the letter of the best answer. Write the chosen letter on a separate sheet of
paper.
1. Which of the following is TRUE of polar molecules?
i. Have high boiling point iii. low surface tension
ii. Have high melting point iv. High vapor pressure
a. I only
b. I and II only
c. II and III only
d. IV only
2. Which of the following intermolecular forces of attraction (IMFA) is arranged
from strongest to weakest?
a. H- bonding – dipole-dipole – London forces
b. London-forces – dipole-dipole – H-bonding
c. Dipole-dipole – London forces – H- bonding
d. H-bonding – London forces – dipole-dipole
For numbers 3-6, consider the choices below:
a. boiling point c. Viscosity
1
Quarter 3 – Module 3:
Polarity of Molecules and Its
Properties
ii
,Introductory Message
For the learner:
Welcome to the Physical Science 11/12 Alternative Delivery Mode (ADM) Module on
Properties of Molecules based on its Polarity!
The hand is one of the most symbolic parts of the human body. It is often used to
depict skill, action and purpose. Through our hands we may learn, create and
accomplish. Hence, the hand in this learning resource signifies that you as a learner is
capable and empowered to successfully achieve the relevant competencies and skills
at your own pace and time. Your academic success lies in your own hands!
This module was designed to provide you with fun and meaningful opportunities for
guided and independent learning at your own pace and time. You will be enabled to
process the contents of the learning resource while being an active learner.
The following are some reminders in using this module:
1. Use the module with care. Do not put unnecessary mark/s on any part of the
module. Use a separate sheet of paper in answering the exercises.
2. Don’t forget to answer What I Know before moving on to the other activities
included in the module.
3. Read the instruction carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking your answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are through with it.
7. Write your answers on the answer sheet
8. Use black or blue ink only in answering
If you encounter any difficulty in answering the tasks in this module, do not
hesitate to consult your teacher or facilitator. Always bear in mind that you are not
alone.
We hope that through this material, you will experience meaningful learning and
gain deep understanding of the relevant competencies. You can do it!
iii
, What I Need to Know
This module was designed and written with you in mind. It is here to help you
master the concept of polarity of molecules. The scope of this module permits it to be
used in different learning situations. The language used recognizes the varied
vocabulary level of students. The lessons are arranged to follow the standard sequence
of the course. But the order in which you read them can be changed to correspond
with the textbook you are now using.
After going through this module, you are expected to:
1. define solubility, miscibility and polarity;
2. identify the different types of intermolecular forces of attraction ; 3.
explain how polarity of molecules related to its properties
What I Know
Choose the letter of the best answer. Write the chosen letter on a separate sheet of
paper.
1. Which of the following is TRUE of polar molecules?
i. Have high boiling point iii. low surface tension
ii. Have high melting point iv. High vapor pressure
a. I only
b. I and II only
c. II and III only
d. IV only
2. Which of the following intermolecular forces of attraction (IMFA) is arranged
from strongest to weakest?
a. H- bonding – dipole-dipole – London forces
b. London-forces – dipole-dipole – H-bonding
c. Dipole-dipole – London forces – H- bonding
d. H-bonding – London forces – dipole-dipole
For numbers 3-6, consider the choices below:
a. boiling point c. Viscosity
1
