AP Chemistry: Bonding Review

Question 1

How many unshared electron pairs does PO4^3- have?

Accepted Answer

0

Question 2

What is the weakest IMF?

Accepted Answer

LDF

Question 3

Out of the three, which DOESN’T have a tetrahedral molecular geometry?

Accepted Answer

SF4

Question 4

To calculate enthalpy from bond enthalpy (be ), subtract the be products from be reactants.

Accepted Answer

False

Question 5

What is the F-C-F bond angle?

Accepted Answer

90

Question 6

In an ionic bond, the larger the atomic size, the ___ the bond.

Accepted Answer

weaker

Question 7

What is the change of heat (delta H) of the below reaction?

Accepted Answer

-1103 kJ

Question 8

What is the angle of a square planar molecule? (FINAL QUESTION)

Accepted Answer

90 or 180

Question 9

Which of these has a Lewis structure with one unshared electron pair? (You can do it!)

Accepted Answer

H2O

Question 10

What is the molecular geometry for this compound?

Accepted Answer

square planar

Question 11

If there are 5 lone pairs and a single lone pair, what is the molecular geometry?

Accepted Answer

seesaw, distorted tetrahedron, folded square

Question 12

What is the central atom in a benzene ring?

Accepted Answer

There isn't a central atom

Question 13

True or False. A double bond has a higher bond enthalpy?

Accepted Answer

True

Question 14

Examples of bonds with LDF include all EXCEPT:

Accepted Answer

NH3

Question 15

Some noble gases are able to form bonds because of an __, in contrast to the normal number.

Accepted Answer

expanded octet

Question 16

What is the enthalpy of the below reaction?

Accepted Answer

315 kJ

Question 17

IMF are also known as dispersion factors.

Accepted Answer

true

Question 18

Boron can be stable with just_____ valence electrons.

Accepted Answer

6

Question 19

How many bonds does the Lewis structure of sulfur trioxide contain?

Accepted Answer

2 pi, 10 sigma

Question 20

Which has the highest atomic radius?

Accepted Answer

I2

Question 21

The central atom can have more than __ but not over ____.

Accepted Answer

8 and 12

Question 22

What is a key point of a stable bond?

Accepted Answer

positive bond order

Question 23

Double bonds placed in between the central and outer atom, which float around?

Accepted Answer

resonance

Question 24

Put these in order from weakest to strongest; 1.LDF 2. dipole-dipole 3. ionic 4. hydrogen

Accepted Answer

1, 2, 3, 4

Question 25

How would you write the equation to find bond order? (be=bonding electrons)

Accepted Answer

(#of be - # of anti-be)2

Question 26

Water, H2O, has a _____ molecular geometry.

Accepted Answer

bent

Question 27

Which has a smaller molecular radius?

Accepted Answer

O

Question 28

A species is covalent, symmetrical, and non-polar. What kind of bond would it be?

Accepted Answer

LDF

Question 29

Which has the strongest bond?

Accepted Answer

Mg3N2

Question 30

Coulomb's equation= K(q1q2/r^2)

Accepted Answer

False

Question 31

The purpose of the VSPER theory is:

Accepted Answer

predict shapes of molecules

Question 32

True or False. An ionic bond is a van der Waals force?

Accepted Answer

False

Question 33

What is the molecular geometry for this compound?

Accepted Answer

linear

Question 34

Which molecule has a shorter bond?

Accepted Answer

O2

Question 35

Which molecule would have a higher bond enthalpy for the carbon C-C bond?

Accepted Answer

C2H4

Question 36

Which has the weakest bond?

Accepted Answer

RbI

Question 37

A complete octet contains how many electrons?

Accepted Answer

8

Question 38

What is the angle that results from 3 bonding pairs of electrons?

Accepted Answer

Three bonding pairs, equilateral, 120

Question 39

Which is the strongest IMF?

Accepted Answer

ionic

Question 40

What is the effect of non-bonded electrons?

Accepted Answer

bond angles will be less than the ideal angle(s)

Question 41

LDF bonds involve species that are___ and ___.

Accepted Answer

covalent, non-polar

Question 42

In dipole-dipole bonds, strength is determined by___.

Accepted Answer

electronegativity

Question 43

In order for a bond to be a hydrogen bond, H has to be bonded to ___,____, or ___.

Accepted Answer

N, O, F

Question 44

Lone pairs do repel the other surrounding electron pairs away.

Accepted Answer

true, creates a dipole

Question 45

In a tetrahedral, the bond angles are about ______ degrees

Accepted Answer

109.5

Question 46

In LDF, more polarizable electrons means a ____ bond.

Accepted Answer

stronger

Question 47

What is a sigma bond?

Accepted Answer

two lobes overlap the involved atomic orbital

Question 48

Which of the following does not have a tetrahedral structure?

Accepted Answer

CH4

Question 49

What is the shape of 2 bonding pairs of electrons? (in degrees)

Accepted Answer

180

Question 50

What is the hybridization of the octahedral, having 6 electron pairs?

Accepted Answer

d^2sp^3

AP Chemistry: Bonding Review

Questions 50

AP Chemistry: Bonding Review

Questions 50