Chemistry chapter 8

Question 1

Endothermic reactions

Accepted Answer

take in energy

Question 2

Endothermic reactions absorb heat, while Exothermic reactions...

Accepted Answer

Give off energy in primarily the form of heat

Question 3

The molecular geometry of HCl is:

Accepted Answer

Linear

Question 4

A Covalent bond forms a molecule.

Accepted Answer

True

Question 5

Hybridization of central atom

Accepted Answer

sp3

Question 6

Endothermic reactions...

Accepted Answer

absorbs thermal energy

Question 7

What is the formulas for Zinc Oxide?

Accepted Answer

ZnO

Question 8

The molecular geometry of CBr4 is:

Accepted Answer

Tetrahedral

Question 9

a pi bond is formed from the...

Accepted Answer

overlap of p-orbitals

Question 10

The molecular geometry of PCl3 is:

Accepted Answer

Trigonal pyramid

Question 11

What is the Lewis structure?

Accepted Answer

used to represent the covalent bonding of a molecule or ion.

Question 12

Name this Binary Compound! (MgCl2)

Accepted Answer

magnesium chloride

Question 13

Which bond is the most polar?

Accepted Answer

H-O

Question 14

what is a covalent bond?

Accepted Answer

a chemical bond that results from the sharing of valence electrons

Question 15

A covalent bond with one atom has a high electronegativity, the other has low electronegativity

Accepted Answer

polar covalent

Question 16

Exothermic reactions feel hot

Accepted Answer

True

Question 17

The geometry associated with sp2 hybridization is:

Accepted Answer

trigonal planar

Question 18

Which of these formulas should have 32 valence electrons in its Lewis structure?

Accepted Answer

PO43-

Question 19

What element has the following Lewis Dot Symbol?

Accepted Answer

Argon

Question 20

What does VESPR stand for?

Accepted Answer

velance shell electron pair repulsion

Question 21

In a polar covalent bond, electrons are

Accepted Answer

Unequally shared

Question 22

Which bond is considered polar?

Accepted Answer

P-Cl

Question 23

When naming a binary ionic compound what comes first?

Accepted Answer

The name of the cation

Question 24

Structural Formulas show?

Accepted Answer

number of each element, shows appropriate arrangement, Which elements make up the molecule

Question 25

The molecular geometry of NH3 is:

Accepted Answer

Trigonal pyramid

Question 26

The molecular geometry of CH3Cl is:

Accepted Answer

Tetrahedral

Question 27

What is a sigma bond?

Accepted Answer

two lobes overlap the involved atomic orbital

Question 28

Which of these formulas should have 24 valence electrons in its Lewis structure?

Accepted Answer

NO3-

Question 29

Binary Compound

Accepted Answer

A compound composed of two elements

Question 30

What is a covalent bond?

Accepted Answer

Bonds between two non metals

Question 31

Which bond contains two pi bonds

Accepted Answer

E

Question 32

Hybridization of S

Accepted Answer

sp2

Question 33

What is a Nonpolar Covalent Bond?

Accepted Answer

Bonding electrons that are shared equally

Question 34

A compound that is composed of molecules

Accepted Answer

Molecular compound

Question 35

Whcih is an examle of a covalent bond?

Accepted Answer

H2O

Question 36

Type of hybridization of carbon 2

Accepted Answer

sp

Question 37

How many pi bonds are in a double bond?

Accepted Answer

1

Question 38

What is Exothermic Chemical reactions?

Accepted Answer

Releases energy by light or heat.

Question 39

VESPR theory is supported by...

Accepted Answer

electrons repelling each other

Question 40

The molecular geometry of H2O is:

Accepted Answer

Bent

Question 41

Sigma bonds are formed by ...

Accepted Answer

Direct overlap of the ends of orbitals

Question 42

A covalent bond is polar if the difference in Pauling Units is

Accepted Answer

between 0.4 and 1.7

Question 43

What is the hybridization of the Hydrogens?

Accepted Answer

Hydrogen cannot hybridize but the s orbital is full

Question 44

How many sigma and pi bonds are in a triple bond?

Accepted Answer

1 sigma, 2 pi

Question 45

How many pi bonds are in a single bond?

Accepted Answer

0

Question 46

Which is an example of a covalent bond?

Accepted Answer

CO2

Question 47

Which of the following molecules has a linear shape?

Accepted Answer

CO2

Question 48

When naming a binary molecular compound change the ending of the elements name to

Accepted Answer

-ide

Question 49

How many sigma bonds are in a triple bond?

Accepted Answer

1

Question 50

The molecular geometry of H2S is:

Accepted Answer

Bent

Question 51

Lewis structures show...

Accepted Answer

Valence electrons

Question 52

What is a non-polar covalent bond?

Accepted Answer

when electrons are shared equally

Chemistry chapter 8

Questions 52

Chemistry chapter 8

Questions 52