VSEPR and Polarity

What molecule could this be? 

• BF₃
• CH₄
• H₂O
• CO₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Who could this molecule be?

• CH₄
• CO₂
• PCl₅
• BF₃

Tags

NGSS.MS-PS1-1

Who could this be? 

• CO₂
• NH₃
• H₂S
• CH₄

Tags

NGSS.MS-PS1-1

Who could this be?

• H₂O
• NH₃
• CO₂
• CH₄

Tags

NGSS.MS-PS1-1

How many lone pairs of electrons are on the P atom in PF3?

• 1
• 2
• 3
• 0

Tags

NGSS.HS-PS1-1

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

• Pairs of valence electrons
• Inner shell electrons
• Mobile Electrons
• Electrons closest to the nucleus

How many unshared pairs of electrons will a bent molecule have?

• 0

• 2

• 3

• 4

In a polar bond, the more electronegative element will assume a partial ________ charge.

• positive
• negative

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.HS-ESS2-5

Does the following reference Polar, Nonpolar, or both:

"equal sharing of electrons"?

• Polar

• Nonpolar

• Both