Chemistry I Honors Unit #4 (Spring 2017)

Question 1

A molecule with a single covalent bond is _.

Accepted Answer

Cl2

Question 2

In naming molecular compounds, the number of element atoms in the molecule is indicated by _.

Accepted Answer

prefixes

Question 3

How is a pair of molecular orbitals formed?

Accepted Answer

by the overlap of 2 atomic orbitals from different atoms

Question 4

Sigma bonds are formed as a result of the overlapping of which type(s) of atomic orbital(s)?

Accepted Answer

s and p

Question 5

What is thought to cause the dispersion forces?

Accepted Answer

motion of electrons

Question 6

Which of the forces of molecular attraction is the weakest?

Accepted Answer

dispersion

Question 7

A bond formed between a silicon atom and an oxygen atom is likely to be _.

Accepted Answer

polar covalent

Question 8

How many electrons can occupy a single molecular orbital?

Accepted Answer

2

Question 9

Why do atoms share electrons in covalent bonds?

Accepted Answer

to attain a noble-gas electron configuration

Question 10

Which of the following is a binary molecular compound?

Accepted Answer

PCl5

Question 11

When dissolved in water, acids produce _.

Accepted Answer

hydrogen ions

Question 12

According to VSEPR theory, molecules adjust their shapes to keep what as far apart as possible?

Accepted Answer

pairs of valence electrons

Question 13

What are the weakest attractions between molecules?

Accepted Answer

Van der Waals forces

Question 14

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

Accepted Answer

2 atoms share 2 electrons

Question 15

The side-by-side overlap of p orbitals produces what kind of bond?

Accepted Answer

pi bond

Question 16

Which of the following covalent bonds is the most polar?

Accepted Answer

H-F

Question 17

Binary molecular compounds are made of two _.

Accepted Answer

nonmetallic elements

Question 18

What causes water molecules to have a bent shape, according to the VSEPR theory?

Accepted Answer

repulsive forces between unshared pairs of electrons

Question 19

Molecular compounds are usually _.

Accepted Answer

composed of two or more nonmetallic elements

Question 20

What causes hydrogen bonding?

Accepted Answer

bonding of covalently bonded H atoms w/ an unshared e- pair

Question 21

Which of these elements does not exist as a diatomic molecule?

Accepted Answer

Ne

Question 22

What is the shape of a molecule with a triple bond?

Accepted Answer

linear

Question 23

Which noble gas has the same electron configuration as the oxygen in a water molecule?

Accepted Answer

neon

Question 24

What is the formula for sulfurous acid?

Accepted Answer

H2SO3

Question 25

What is the ending for the names of all binary compounds, both ionic and molecular?

Accepted Answer

-ide

Chemistry I Honors Unit #4 (Spring 2017)

Questions 25

Chemistry I Honors Unit #4 (Spring 2017)

Questions 25