Chapter 8 Test

Question 0

Covalent Bonds

Answer 0

• Occurs when electrons of the atoms within a molecule are shared
• Single, Double, and Triple covalent bonds exist

Question 1

Molecular Compounds

Answer 1

-Compounds whose atoms bind to one another through covalent bonds

Question 2

Diatomic Model

Answer 2

• A molecule which has 2 atoms bonded together via covalent bonds
• Anything greater is a molecular compound
• All moecules

Question 3

Ionic Bonds

Answer 3

-Electrons are transferred from one atom to another forming ions

Question 4

Characteristics of an Ionic Compound

Answer 4

• Metal + Nonmetal
• Form salt crystals
• high metaling points
• Conduct electricity

Question 5

Characteristics of a molecular compound

Answer 5

• Nonmetal + nonmetal
• Liquid and gas at room temp
• low metaling points
• Diverse properties

Question 6

Electronegativity Trend

Answer 6

• Increases left to right

- Decreases top to bottom

Question 7

VESPR theory

Answer 7

• Used to predict the shape of molecules
• The repulsion between electron pairs causes molecular shapes to adjust so that the valence electron pairs (BP and LP) stay as far apart as possible

Question 8

Naming Molecular Compounds

Answer 8

• Prefixes are always used unless the first element only has one atom
• The prefix -ide is added to the 2nd element
• Hydrogen= hydride

Question 9

Prefixes

Answer 9

1. Mono
2. Di
3. Tri
4. Tetra
5. Penta
6. Hexa
7. Hepta
8. Octa
9. Nona
10. Deca

Question 10

Linear Shape

Answer 10

• 2 Bonded pairs

Question 11

Trigonal Planar Bent Shape

Answer 11

-Two bonded pairs and 1 lone pair

Question 12

Trigonal Planar

Answer 12

-Three bonded pairs

Question 13

Tetrahedral Tetrahedral

Answer 13

-4 Bonded pairs

Question 14

Tetrahedral Pyramidal

Answer 14

-3 bonded pairs and 1 lone pair

Question 15

Tetrahedral Bent

Answer 15

-2 bonded pairs, 2 lone pairs

Question 16

VSEPR stands for..?

Answer 16

Valence
Shell
Electron
Pair 
Repulsion Theory