2022 IMF Review

Which option best describes intermolecular forces?

• Forces of attraction between positively and negatively charged ions.

• Forces of attraction between molecules that is responsible for determining the state of matter

• Forces of attraction that keep molecules together.

• Forces of attraction between atoms in a chemical bond

Which of the following are types of intermolecular forces?

• Metallic Bonds

• Hydrogen Bonding

• Covalent Bonds

• Ionic Bonds

Water has a higher-than-normal boiling point due to its _______.

• Dipole Dipole

• Ionic Bond

• Hydrogen Bond

• Intramolecular Force

Which of the following are physical properties that are observable at the bulk scale?

• Boiling Point

• Melting Point

• Vapor Pressure

• All of the options

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A weak IMF will result in a

• high boiling point

• high heat of fusion

• low melting point

• high melting point

Liquids with weak intermolecular forces

• contain a lot of kinetic energy

• easily evaporate

• cannot melt

• require a lot of energy to freeze

Molecules with strong attraction between themselves require __________ to separate than weakly attracted molecules.

• more energy

• less energy

• no energy

• Nuclear energy

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NGSS.HS-PS1-3

Based on the compound's melting point, which compound has the strongest Intermolecular Force?

• HOH

• CH4

• C2H6

• CH3OH

Based on the compound's Boiling Point, which compound has the weakest IMF?

• C3H8

• CH4

• C2H6

• C4H10

Which statement explains why Br₂ is a liquid at STP and I₂ is a solid at STP?

• Molecules of Br₂ are polar, and molecules of I₂ are nonpolar

• Molecules of Br₂ are nonpolar, and molecules of I₂ are polar

• Molecules of Br₂ have stronger intermolecular forces than molecules of I₂.

• Molecules of I₂ have stronger intermolecular forces than molecules of Br₂.

Tags

NGSS.HS-PS1-3