Polarity and IMF

Question 1

The distribution of electrical charge around atoms, chemical groups, or molecules

Answer 1

Polarity

Question 2

Ways to Determine Polarity of Molecules

Answer 2

1. Electronegativity Difference
2. Molecular Shape

Question 3

Group of Atoms bonded together

Answer 3

Molecules

Question 4

Ability of an atom to attract electrons towards itself in a chemical bond?

Answer 4

Electronegativity

Question 5

Types of Covalent Bonds

Answer 5

Polar and Non-Polar

Question 6

If Electronegativity is below 0.4, what is the bond?

Answer 6

Nonpolar Covalent

Question 7

Types of Bonds

Answer 7

Covalent and Ionic

Question 8

If Electronegativity is 0.4 to 1.69, what is the bond?

Answer 8

Polar Covalent

Question 9

If Electronegativity is above 1.69, what is the bond?

Answer 9

Ionic

Question 10

Electronegativity Difference Formula

Answer 10

EN = I Ea - Eb I

Question 11

Bonds that share electrons

Answer 11

Covalent

Question 12

Bonds that bonded despite having different electronegativities

Answer 12

Ionic

Question 13

Which Covalent bond is more stable?

Answer 13

Non-Polar

Question 14

Kinds of Molecular Shapes

Answer 14

Linear
Trigonal Planar
Bent or Angular
Tetrahedral
Trigonal Pyramidal
Trigonal Bipyramidal
Octahedral

Question 15

Which Molecular Shapes are considered POLAR?

Answer 15

Bent or Angular and Trigonal Pyramidal

Question 16

Bonds with Equal Pairs

Answer 16

Nonpolar

Question 17

Bonds with Unequal Pairs

Answer 17

Polar

Question 18

What do we call an Electron with no pair?

Answer 18

Lone Pair

Question 19

Which Molecular Shapes are considered NONPOLAR?

Answer 19

Linear
Trigonal Planar
Tetrahedral
Trigonal Bipyramidal
Octahedral

Question 20

What Shape is this?

S = C = S

Answer 20

Linear

Question 21

What Shape is this?

   H
   II H = C = H
   II
  H

Answer 21

Tetrahedral

Question 22

Forces within a molecule or ionic compound (inner)

Answer 22

Intramolecular Forces

Question 23

Forces between two molecules or ions and molecules (outer)

Answer 23

Intermolecular Forces

Question 24

Name the three (3) states

Answer 24

Solid, Liquid, Gas

Question 25

The MORE CLOSELY bonded the molecules

Answer 25

The HIGHER the IMF

Question 26

Bounds molecules together

Answer 26

IMF

Question 27

Strong IMF

Answer 27

Solid

Question 28

Moderate IMF

Answer 28

Liquid

Question 29

Low IMF

Answer 29

Gas

Question 30

What do you use to break a bond?

Answer 30

Temperature

Question 31

What are the types of Ion?

Answer 31

Cation (Na+) and Anion (Na-)

Question 32

A molecule with net electric charge

Answer 32

Ion (Na)

Question 33

Where one side of the atom is negatively charged (-) - typically the HEAD of a molecule, and another is positively charged (+) - typically the TAIL of a molecule

Answer 33

Dipole

Question 34

Types of IMF

Answer 34

London Dispersion (Dispersion Forces) Dipole-Dipole Forces Hydrogen Bond Ion-Dipole Bond

Question 35

Default intermolecular force that is present in POLAR and NON-POLAR molecules. Caused by fluctuations in the electron distribution. Electrons are UNEVENLY DISTRIBUTED.

Answer 35

London Dispersion (Dispersion Forces)

Question 36

Can only exist in POLAR molecules, where positive end is attracted to negative neighbor.

Answer 36

Dipole-Dipole Forces

Question 37

Special type of Dipole-Dipole (only for POLAR atoms). Can only occur when an H (hydrogen) atom is connected with either of the following: N (nitrogen), O (oxygen), or F (flourine)

Answer 37

Hydrogen Bond

Question 38

Attractive forces between an ion (Na) and POLAR molecule.

Answer 38

Ion-Dipole Forces

Question 39

IMF of Boiling Point

Answer 39

Stronger IMF = Higher Boiling Point

Question 40

IMF of Melting (endothermic) or Freezing (exothermic) Point

Answer 40

Stronger IMF = Higher Melting and Freezing Point

Question 41

What is the Strongest type of IMF?

Answer 41

Ion-Dipole Forces

Question 42

What is the Weakest type of IMF

Answer 42

London Dispersion (Dispersion Forces)

Question 43

Which has stronger IMF between BONDS?

Answer 43

Polar Bonds

Question 44

IMF of Surface Tension

Answer 44

Stronger IMF = Greater Surface Tension

Question 45

IMF of Viscosity

Answer 45

Stronger IMF = More Viscous

Question 46

Temperature at which boiling occurs

Answer 46

Boiling Point

Question 47

Temperature at which solid and liquid phases coexist in equilibrium

Answer 47

Melting and Freezing Point

Question 48

Measure of Elastic Force in the surface of a liquid

Answer 48

Surface Tension

Question 49

Measure of fluid's resistance to flow

Answer 49

Viscosity