Unit 10 Review

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

Does HCl have hydrogen bonding?

• yes
• no

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

Intermolecular forces for: NH₃

• Dispersion Force

• Dipole dipole

• Hydrogen bonding

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

Intermolecular forces for: CO₂

• Dispersion Force

• Dipole dipole

• Hydrogen bonding

What state of matter is X?

• solid 
• liquid
• gas
• supercritical fluid

What state of matter is Y?

• solid 
• liquid
• gas
• supercritical fluid

What change occurs from F to E?

• sublimation
• deposition
• melting
• condensation

What change occurs from E to C?

• sublimation
• freezing
• melting
• boiling