London Dispersion
What is the strength of a London Dispersion force
Weak
Medium
What is the strength of the hydrogen bond
Strong
Is an intermolecular or intramolecular force stronger
Intra
If an intermolecular force gets stronger what often happens to a substances viscosity
The substance gets thicker or more viscous
True or false: A polar molecule can have a London dispersion force
True
(London dispersion forces are in all molecules)
True or false: A non-polar molecule can have dipole-dipole forces
False
(Dipole-dipole forces can only be found in polar molecules)
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)
What kind of line represents an intermolecular force
A dotted or dashed line (------------)
If an intermolecular force gets stronger what often happens to the density of an object
It get more dense
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.
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.
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).
True or false: A molecule can have no intermolecular force
False
If an intermolecular force gets stronger what often happens to the boiling point of an object
It gets higher
H2O adjacent to what other molecule will create a London dispersion force.
A. NH3
B. CH4
C. HCl
D. H2O
B
H2O adjacent to what other molecule will create a Dipole-dipole force.
A. NH3
B. CH4
C. HCl
D. H2O
C
H2O adjacent to what other molecule will create a Hydrogen bond.
A. NH3
B. CH4
C. HCl
D. NOF
A
Define what the word intramolecular means
Inside/Within the molecule
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
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)
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.
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.
Define what the word intermolecular means
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.