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Question 1

Properties of Molecules based on its Polarity

Answer 1

Polarity, Solubility, and Miscibility

Question 2

• is defined as the ability of a solid substance to be dissolved in a given
  amount of solvent.

Answer 2

Solubility

Question 3

• is the ability of the two liquids to combine or mix in all proportions,
  creating a homogenous mixture.

Answer 3

Miscibility

Question 4

general rule of the solubility and miscibility of molecular
compounds:

Answer 4

“like dissolves like” or “like mixes with like”.

Question 5

Bond Strength and Physical Properties of Covalent Compounds

Answer 5

Intramolecular forces of attraction

Intermolecular forces of attraction (IMFA)

Question 6

– it is the attractive force that binds atoms
together.

Answer 6

Intramolecular forces of attraction

Question 7

– it is another type of attractive force
which exists between molecules.

Answer 7

Intermolecular forces of attraction (IMFA)

Question 8

There are several types of IMFA and below they are arranged from
STRONGEST to WEAKEST.

Answer 8

Ion-dipole
H-bonding
dipole-dipole
dipole-induced dipole
London forces of
attraction

Question 9

The physical properties of substances:

Answer 9

Boiling point
Melting point -
Surface tension
Viscosity
Vapor pressure
Volatility

Question 10

• temperature at which the vapor pressure and atmospheric
  pressure of a liquid substance are equal.

Answer 10

Boiling point

Question 11

• temperature at which solid becomes liquid.

Answer 11

Melting point

Question 12

• energy needed to increase the surface area by a unit
  amount;

Answer 12

Surface tension

Question 13

• the resistance of the liquid to flow

Answer 13

Viscosity

Question 14

• pressure exerted by a substance in its gaseous state.

Answer 14

Vapor pressure

Question 15

• measures the rate at which a substance vaporizes

Answer 15

Volatility

Question 16

Atoms in molecules and ionic substances are attracted to each other

Answer 16

either by
sharing or complete transfer of electrons

Question 17

Atoms are held together in molecules by

Answer 17

strong intramolecular forces

Question 18

Named after the Dutch chemist Johannes van der Waals (

Answer 18

Van der Waals forces

Question 19

is present among polar molecules.

Answer 19

Dipole-dipole attraction

Question 20

just like the dipole-dipole forces, depends on the presence of polar
molecules. The other molecule needs not be a polar one.

Answer 20

Dipole-induced dipole interaction

Question 21

Named after the German physicist Fritz London

Answer 21

Dispersion forces (London dispersion forces)

Question 22

Are the results from the attraction between either a cation (+) or an anion
(-) with permanent polar molecules

Answer 22

Ion-dipole interaction

Question 23

is a special type of dipole-dipole interaction between the H-atoms in a
polar bond.

Answer 23

H-bonding