General Chemistry 2.1 (2021-2022)

Which sample has hydrogen bonding?

• H₂S

• CH₄

• NH₃

• HI

Water has an unusually high boiling point for a molecular compound because it has

• hydrogen bonding

• ion-ion attractions

• a high density

• a large gram formula mass

Tags

NGSS.HS-PS3-4

Which substance has the weakest intermolecular forces?

• Substance A, boiling point of 75 °C

• Substance B, boiling point of 105 °C

• Substance C, boiling point of 25 °C

• Substance d, boiling point of 45 °C

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

Tags

NGSS.HS-PS1-3

________________________ have the strongest intermolecular forces of attraction.

• Dipole- Dipole

• Dispersion

• Hydrogen Bonds

• Ion-Dipole

Hydrogen bonding occurs when hydrogen is bonded to N, O, or F. Which of the following has hydrogen bonding?

• CBr₄

• NO₂

• H₂S

• NH₃

Does H₂O have hydrogen bonding?

• Yes

• No

This property of water allows it to be the universal solvent.

• polar molecule

• surface tension

• solubility

• density

Tags

NGSS.HS-ESS2-5

H⁺ and O^- show which property?

• Hydrogen bonding

• States of matter

• Specific heat

• Polar molecule

Approximately, what percentage of Earth does water cover?

• 30%

• 70%

• 92%

• 10%