S2

Question 1

What’s an organic compound

Answer 1

Must have carbon present and usually contains carbon bonded to hydrogen

Question 2

What’s an inorganic compound

Answer 2

Must have carbon present but not bonded to hydrogen

Question 3

What is the bond angle and electron domain geometry when a compound has 2 ELECTRON DOMAINS

Answer 3

180 degrees
EDG - Linear

Question 4

What is the bond angle and electron domain geometry when a compound has 3 ELECTRON DOMAINS

Answer 4

Bond Angle - 120 degrees
EDG - Trigonal Planar

Question 5

What is the EDG, MG, and bond angle When the number of electron pairs is 3
bonding pairs :3
lone pairs : 0

Answer 5

Trigonal Planar
120 degrees.

Question 6

What is the EDG, MG, and bond angle When the number of electron pairs is 3
bonding pairs : 2
lone pairs : 1

Answer 6

bent 118 degrees

Question 7

What is the EDG, MG, and bond angle When the number of electron pairs is 4
bonding pairs 4
lone pairs : 0

Answer 7

tetrahedral
109.5 degrees

Question 8

What is the EDG, MG, and bond angle When the number of electron pairs is 4
bonding pairs : 3
lone pairs : 1

Answer 8

Trigonal pyramidal
107
(each lone pair takes away 2-2.5 degrees)

Question 9

What is the EDG, MG, and bond angle When the number of electron pairs is 4
bonding pairs : 2
lone pairs : 2

Answer 9

Bent
104.5 degreee

Question 10

electron pairs refer to

Answer 10

electron domains

Question 11

What is the rule with Be

Answer 11

can form an incomplete octet was only 2 bonding pairs

Question 12

What is the rule with B

Answer 12

can form incomplete octet with only 3 bonding pairs

Question 13

What’s a covalent bond

Answer 13

The electrostatic attraction between the nuclei of two atoms and a shared pair of electrons

Question 14

What creates the electrostatic attraction in a covalent bond

Answer 14

The opposite charges of the positively charges nuclei and negatively charged electrons cause this electrostatic attraction

Question 15

What are non-polar bonds

Answer 15

they are composed of atoms with similar or the same electronegativity values and similar levels of attraction.
eg O2 and H2

Question 16

What electronegativity value correlates to a non-polar bond

Answer 16

0.1-0.4

Question 17

What electronegativity value correlates to a polar bond

Answer 17

0.4-1.7

Question 18

The atom with a greater attraction to the electrons (polar covalent bond) results in what?

Answer 18

greater electron density

Question 19

The atom with a greater electronegativity and higher density will have a symbol of

Answer 19

delta negative

Question 20

The atom with a smaller electronegativity and lower density will have a symbol of

Answer 20

delta positive

Question 21

Is the molecules is asymmetrical then the polar/non-polar bonds will

Answer 21

not cancel out

Question 22

If the molecules are symmetrical then the polar /non-polar bonds will

Answer 22

cancel out

Question 23

What molecular geometry of diamond

Answer 23

Tetrahedral
109 .5

Question 24

Molecular geometry of graphite

Answer 24

trigonal planar
120

Question 25

What would the molecular geometry of fullerenes be

Answer 25

trigonal planar 120

Question 26

4 types of intermolecular forces

Answer 26

• London dispersion • Dipole-induced dipole • Dipole - Dipole • Hydrogen bonding

Question 27

What are Intramolecular forces

Answer 27

within molecules (long line) Examples Covalent and Ionic Stronger than Intermolecular

Question 28

What are Intermolecular Forces

Answer 28

Between molecules (dashed lines) Example Dipole dipole, Hydrogen bonding , London Dispersion Weaker than Intramolecular

Question 29

London dispersion forces exist between

Answer 29

ALL molecules

Question 30

How strong are london dispersion forces

Answer 30

they are the weakest intermolecular force

Question 31

If polar bonds are not arranged symmetrically in a molecule then the molecule will have a

Answer 31

PERMANENT DIPOLE

Question 32

A dipole dipole force will only exist between

Answer 32

two asymmetrical molecules that each have a permanent dipole

Question 33

What is stronger dipole dipole forced or london dispersion forces

Answer 33

dipole-dipole

Question 34

Why do the boiling points of halogens increase as their molecular masses increase

Answer 34

The intermolecular attraction due to temporarily induced dipoles increases

Question 35

Hydrogen bonding only occurs when

Answer 35

molecules have a bond between hydrogen and FLUORINE , OXYGEN OR NITROGEN the electronegative element must have a lone pair

Question 36

What is an electron domain

Answer 36

single bond double bond triple bond lone pair

Question 37

single bonds are the

Answer 37

longest