Polarity and Intermolecular Forces

In a polar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In a nonpolar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

Partial charges are present in which type of bond?

• Ionic

• Nonpolar Covalent

• Polar Covalent

• Both Polar Covalent and Ionic

Is this molecule polar or non-polar?

• Non-polar

• Polar

Tags

NGSS.HS-PS1-1

Which molecule contains bonds of GREATER polarity?

• H2O
• OF2

Tags

NGSS.HS-PS1-1

Polar or non polar? H₂S

• polar

• nonpolar

Polar or nonpolar? PH₃

• polar

• nonpolar

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.

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