Chapter 8* 2024

Question 1

What is the name? N2O4

Accepted Answer

dinitrogen tetraoxide

Question 2

What determines the strength of a covalent bond?

Accepted Answer

length

Question 3

Which describes a nonpolar covalent bond?

Accepted Answer

Bonding e- are shared equally between 2 atoms

Question 4

Which is NOT a property of molecules?

Accepted Answer

high boiling points

Question 5

Which is an expanded octet?

Accepted Answer

SF6

Question 6

Which atom will have the slightly negative charge in PCl3?

Accepted Answer

chlorine

Question 7

The molecule PH3 is nonpolar because

Accepted Answer

it contains nonpolar bonds

Question 8

What is the formula? oxygen

Accepted Answer

O2

Question 9

Which type of bond has 2 electrons shared between atoms?

Accepted Answer

single covalent bond

Question 10

The VSEPR model is based on the idea that...

Accepted Answer

Shared & unshared pairs of e- repel each other

Question 11

Which atom would have a slightly positive charge in the polar molecule SiO2?

Accepted Answer

neither hydrogen or sulfur

Question 12

Which is the correct shape of the molecule PCl3?

Accepted Answer

trigonal pyramidal

Question 13

The energy required to separate one mole of molecules is called

Accepted Answer

bond dissociation energy

Question 14

What factor(s) determine if a molecule is polar?

Accepted Answer

both polarity of bonds and geometry

Question 15

Which would require the least amount of bond dissociation energy?

Accepted Answer

single covalent bond

Question 16

Which atom will end up with a slightly positive charge in HBr?

Accepted Answer

hydrogen

Question 17

Which is the strongest bond?

Accepted Answer

triple covalent bond

Question 18

Based on EN difference, which type of bond in HBr?

Accepted Answer

polar covalent

Question 19

What is the formula? tetraphosphorus hexachloride

Accepted Answer

P4Cl6

Question 20

What is the formula for ammonia?

Accepted Answer

NH3

Question 21

How many single covalent bonds can an atom of phosphorus form?

Accepted Answer

3

Question 22

Polar or nonpolar molecule? ... SiO2

Accepted Answer

nonpolar

Question 23

The process of forming bonds is

Accepted Answer

exothermic

Question 24

In HF, which atom will end up with a slightly negative charge?

Accepted Answer

fluorine

Question 25

What kind of bond is present in all diatomic molecules, like O2 and H2?

Accepted Answer

nonpolar covalent

Question 26

Based on EN difference, which type of bond in H2?

Accepted Answer

nonpolar covalent

Question 27

Which is a suboctet?

Accepted Answer

BF3

Question 28

Which is correct about PCl3? (phosphorus trichloride)

Accepted Answer

it is polar overall, with polar covalent bonds

Question 29

An individual unit of a covalent compound is called a(n)

Accepted Answer

molecule

Question 30

Type of bond in a network solid, like diamond and quartz?

Accepted Answer

covalent bond

Question 31

What is the formula for the IONIC compound calcium nitride? (There will be a few ionic formulas to write on the test.)

Accepted Answer

Ca3N2

Question 32

Which is correct about CO2?

Accepted Answer

it is nonpolar overall, with polar covalent bonds

Question 33

Covalent bonds generally form between __.

Accepted Answer

2 nonmetal atoms

Question 34

Type of Bond? ... SiO2

Accepted Answer

polar covalent

Question 35

Why do atoms form bonds?

Accepted Answer

All of the above

Question 36

Bond that results when the electronegativity difference between atoms is less than 0.4?

Accepted Answer

nonpolar covalent bond

Question 37

Which is the correct shape of the molecule CO2?

Accepted Answer

linear

Question 38

Which type of bond has 2 pairs of electrons shared between atoms?

Accepted Answer

double covalent bond

Question 39

Which describes a covalent network solid?

Accepted Answer

Atoms are bonded covalently in a crystal lattice

Question 40

What is the molecular geometry of NH3?

Accepted Answer

trigonal pyramidal

Question 41

The molecule CF4 is nonpolar because

Accepted Answer

it is symmetrical

Question 42

What is the formula for the IONIC compound chromium (VI) phosphate?

Accepted Answer

Cr(PO4)3

Chapter 8* 2024

Questions 42

Chapter 8* 2024

Questions 42