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WorksheetsIntermolecular Forces Quiz
Total questions: 25
Worksheet time: 45mins
What are intermolecular forces?
Forces that keep elements together
Forces that keep molecules together
Forces that keep atoms together
Forces that keep electrons together
Of the following, which is the strongest intermolecular force?
Hydrogen bonds
Dipole-Dipole interactions
Ion-dipole interactions
Dispersion forces
Why are intermolecular forces between ions so strong?
Their components have formal charges
Their components have slight positive and negative dipoles
Dispersion forces act like glue to hold it together
They share electrons at an incredible rate
What is true of a triple point? Select all that applies.
The boundary between liquids and gases
The boundary between solids, liquids, and gases
High pressure, high temperature
Low pressure, low temperature
Which of the following is 'normal' pressure?
.1 atm
1 atm
10 atm
100 atm
___________ is a measure of energy.
temperature
pressure
A critical point is the boundary between solids and liquids, where they become a supercritical fluid that no longer has a distinction between solid or liquid. This can normally be achieved at...
low pressure, low temperature
low pressure, high temperature
high pressure, low temperature
high pressure, high temperature
How do solids relate to strong intermolecular forces? Select all that applies.
Strong IM forces keep molecules far apart which makes them denser
Strong intermolecular forces have a lot of energy, which makes them denser and easy to break apart
Strong IM forces hold molecules together tightly, which makes them dense and hard to break apart
Strong IM forces have no energy, which makes them dense
How are boiling and condensation points similar?
They both involve heating up the molecules or energizing molecules
They both involve a loss of energy or a cooling down
They both occur at the same temperature and pressure, but one is heating while the other is cooling
All compounds boil and condense at a universal temperature and pressure
Why are nonpolar compounds gases at STP? Select all that apply.
Because they have very little energy
Because they have very strong bonds holding them together
Because they have ionized atoms and an incredibly energized state
Because they have very weak bonds holding them together which allows them freedom
Polar molecules are mainly held together by _______.
dipole-dipole interactions
ionic bonds
ion dipole interactions
van der waals forces
Which intermolecular force am I describing: This is the weakest intermolecular force, and only held together for an instant. This attraction happens because electrons happen to be gathered to one side of the element.
Dispersion/Van der Waals Forces
Dipole-Dipole interactions
Ion-Dipole interactions
Hydrogen Bonds
Hydrogen bonds are stronger than Dipole-Dipole interactions because...
They are actually ion-dipole interactions
Hydrogen bonds have a larger difference in electronegativity than most dipole-dipole interactions
Hydrogen bonds have more electrons because of Hydrogen. More electrons more electrons lead to stronger bonds
No, they are not stronger than Dipole-Dipole interactions.
What does a momentary dipole cause?
an ionic bond
a permanent dipole
a dipole-dipole interaction
an induced dipole
What is a momentary dipole?
a dipole-dipole interaction that lasts only a moment
protons gather to one side of the atom, causing one - side and one + side
electrons gather to one side of the atom, causing one - side and one + side
an ion-dipole interaction
What is a plasma? select all that applies
super heated form of gas
low-energy gas
rarest form of matter in the universe
ionized gas
How are plasmas the most abundant state of matter in the universe?
lightning is made of plasma
stars are made of plasma
planets are made of plasma
space is made of plasma
Which of the following is most likely to be a solid at STP?
a material held together with van der waals forces
a material held together with dipole-dipole forces
a material held together with ion-ion forces
a material held together with hydrogen bonds
At 1pa of pressure (lowest on the graph), you heat the material from -100C to 0C. What happens?
gas phase to solid phase
solid phase to gas phase
solid phase to liquid phase
solid phase to plasma phase
In addition to a hydrogen bond, what other IM force does this show?
ion-ion force
ion-dipole force
dipole-dipole force
none of the above
What is this image an example of?
ion-dipole force
ion-ion force
dipole-dipole force
van der waals/dispersion force
What is this gif an example of? Select all that applies
van der waals
momentary dipole
dipole-dipole
induced dipole
Why can water not dissolve nonpolar covalent molecules?
they don't have a dipole for H2O to be attracted to
nonpolar covalent molecules have too strong of a dipole for H2O
H2O has too strong of a dipole to be attracted to the nonpolar molecule
the nonpolar covalent molecule has too many protons for H2O
What is the difference between a solvent and a solute?
solvents get dissolved, solutes do the dissolving
solvents are polar, solutes are nonpolar
solutes get dissolved, solvents do the dissolving
solutes are polar, solvents are nonpolar
What is the universal solvent?
water
hydrogen
oxygen gas
methane
