molecular polarity and IMF's

Which of the following is a polar molecule?

• CH₄
• Xe
• H₂O
• CO₂

Tags

NGSS.HS-ESS2-5

Which of the following geometries could be nonpolar?

• bent
• tetrahedral
• trigonal pyrimidal
• none of the above

Which of the following molecules, based on the elements present, would be most polar?

• HF
• H₂
• HCl
• HBr

Tags

NGSS.HS-PS1-1

A molecule containing polar covalent bonds is always polar.

• True
• False

Will this molecule be polar or nonpolar? PH₃

• polar
• nonpolar

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Is the molecule H2  polar or non-polar?

• polar
• non-polar

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.

Tags

NGSS.MS-PS1-4

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

Tags

NGSS.HS-PS1-3

Does H₂S have hydrogen bonding?

• yes
• no