Intermolecular forces

London Dispersion

100

What is the strength of a London Dispersion force 

Weak 

200

True or false: A polar molecule can have a London dispersion force 

True 

(London dispersion forces are in all molecules) 

300

Define a London dispersion force 

A general magnetic force that is created by temporary partial positives and negative charges that are formed by the quick shift of electron arrangement. 

400

H₂O adjacent to what other molecule will create a London dispersion force.

A. NH₃

B. CH₄

C. HCl

D. H₂O

B

500

List any molecule, that when only the intermolecular forces are present between replicas of that molecule, the strongest intermolecular force would be London dispersion.

Answers may vary (Non-polar molecules would be the answer) 

Dipole-Dipole

100

What is the strength of a dipole-dipole force 

Medium 

200

True or false: A non-polar molecule can have dipole-dipole forces 

False

(Dipole-dipole forces can only be found in polar molecules) 

300

Define a dipole-dipole force 

An intermolecular force that is between a partial positive of one atom and a partial positive of another atom that is the result of both the molecules having polar bonds dues to a high difference in electronegativity.

400

H₂O adjacent to what other molecule will create a Dipole-dipole force.

A. NH₃

B. CH₄

C. HCl

D. H₂O

C

500

List any molecule, that when only the intermolecular forces are present between replicas of that molecule, the strongest intermolecular force would be Dipole-dipole forces.

Polar molecules where a N-H, O-H or F-H bond is not present.

Hydrogen Bonds

100

What is the strength of the hydrogen bond 

Strong

200

True or false: Hydrofluoric acid (HF) can form hydrogen bonds 

True 

(The extremely electronegative difference between the Hydrogen (H) atom and fluorine (F) atom result in a very polar bond which would have the capability to form hydrogen bonds) 

300

Define a hydrogen bond 

An intermolecular force that is between a partial positive of one atom and a partial positive of another atom that is the result of both the molecules having polar bonds dues to a high difference in electronegativity with a Hydrogen (H) atom being connected to a nitrogen (N), oxygen (O), or fluorine (F).

400

H₂O adjacent to what other molecule will create a Hydrogen bond.

A. NH₃

B. CH₄

C. HCl

D. NOF

A

500

List any molecule, that when only the intermolecular forces are present between replicas of that molecule, the strongest intermolecular force would be Hydrogen bonds. 

Polar molecules where a N-H, O-H or F-H bond is present.

Inter/Intra

100

Is an intermolecular or intramolecular force stronger 

Intra 

200

What kind of line represents an intermolecular force 

A dotted or dashed line (------------)

300

True or false: A molecule can have no intermolecular force 

False

400

Define what the word intramolecular means 

Inside/Within the molecule 

500

Define what the word intermolecular means 

Between the molecules 

Physical Properties

100

If an intermolecular force gets stronger what often happens to a substances viscosity 

The substance gets thicker or more viscous 

200

If an intermolecular force gets stronger what often happens to the density of an object 

It get more dense 

300

If an intermolecular force gets stronger what often happens to the boiling point of an object 

It gets higher 

400

If an intermolecular force of an object gets weaker what often happens to the capillary action of the substance 

(Your answer can't be stronger or weaker for this one, it has to physically describe what would happen) 

It doesn't climb as high 

500

When the boiling point of a substance gets lower, what does that mean is happening in terms of both intermolecular force and the amount of energy required.  (250 for each response) 

The intermolecular forces get weaker and less energy is required to break the bonds.