Chapter 8 Test Review

Question 1

True / False: For molecules with resonance structures, the actual bonding is a hybrid structure

Accepted Answer

True

Question 2

Which of the following correctly describes a triple covalent bond

Accepted Answer

1 ε, 2 π - 6 shared electrons

Question 3

According to VESPR theory, molecular geometry is due to _____ being kept as far as possible.

Accepted Answer

Pairs of valence electrons

Question 4

What information does a molecular formula provide

Accepted Answer

The type and number of atoms in a molecule

Question 5

True / Fase: Molecular compounds generally have much higher melting points than ionic compounds

Accepted Answer

False

Question 6

Which of the following elements will form a diatomic molecule held together by a triple bond

Accepted Answer

Nitrogen

Question 7

The shape of the methyl chloride molecule (CH3Cl) is ________.

Accepted Answer

Tetrahedral

Question 8

Which of the following could neither accept or donate a hydrogen bond?

Accepted Answer

H - Br

Question 9

How many valid structural formulas can be written for a molecule with resonance structures

Accepted Answer

2 or more

Question 10

True / False: Stable exceptions to the octet rule do exist

Accepted Answer

True

Question 11

Describes a covalent bond between two atoms of significantly different electronegativities

Accepted Answer

Polar covalent

Question 12

How do atoms achieve noble gas configurations in single covalent bonds?

Accepted Answer

two atoms share two electrons

Question 13

True / False: The molecular geometry for an sp3 carbon is always trigonal planar.

Accepted Answer

False

Question 14

What is the shape of the portion of a molecule containing a triple bond?

Accepted Answer

Linear

Question 15

Which of the following molecules is joined by a single covalent bond

Accepted Answer

Br2

Question 16

Draw the Structural Formula for CH3CH2COOH (ethanoic acid). Raise your hand when you are done.

Accepted Answer

2, 3, 1, 4

Question 17

What causes dipole interactions?

Accepted Answer

Attraction between opp. charged poles of polar molecules

Question 18

A molecular orbital is formed from

Accepted Answer

overlap of two atomic orbitals from different atoms

Questions 18