Test 7- Intermolecular Forces Flashcards Preview

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Flashcards in Test 7- Intermolecular Forces Deck (17):
1

Name the compound

If metal and nonmetal
- Name first element
- Second element with -ide
If 2 nonmetals
- Name first element
- greek prefix and ide on second one

2

Determine the bond type (give the electronegativities)

- Subtract en
- nonpolar covalent- 0-0.4
- polar covalent- greater than 0.4 or less than or equal to 1.9
- Ionic if above 1.9

3

Draw lewis dot diagram

- Higher EN goes in the middle
- Make sure each has 8
- H-2
- B-6
- Be-4

4

Determine the shape of the molecule

Use Lone/bonded pairs

5

0/2

Linear- 180
- Looks like a line

6

0/3

Trigonal planar- 120`
- Flat- 3 evenly spaced

7

0/4

Tetrahedral
-

8

1/3

Trigonal pyramidal
-

9

2/2

Angular or bent
-

10

Linear angle

180

11

Trigonal planar angle

120

12

Tetrahedral angle

109.5

13

Trigonal pyramidal angle

107

14

Angular or bent angle

105

15

Molecular Polarity

- Polar if dipoles are not equally distributed
- Usually nonpolar
- Polar if theres a lone pair

16

Strongest-weakest IMF

1. Hydrogen bond
2. Dipole-Dipole
3. London Dispersion

17

How to determine strongest IMF

- All have LDF
- Hydrogen if contains hydrogen
- D-D if lone pair