Which of the following is a polar molecule?

• CH₄
• Xe
• H₂O
• CO₂

Tags

NGSS.HS-PS1-3

Which phrase correctly describes the distribution of charge and the molecular polarity of ethane?

• symmetrical and polar
• asymmetrical and polar
• asymmetrical and nonpolar
• symmetrical and nonpolar

Which statement correctly describes NaCl?

• Its charge is evenly distributed
• It is a polar molecule
• It is ionic, and its charges are distributed unevenly

Tags

NGSS.HS-PS1-3

Which of the following describes the charge distribution and molecular polarity of NH₃?

• even distribution and polar
• uneven distribution and nonpolar
• uneven distribution and polar
• even distribution and nonpolar

Which formula represents a nonpolar molecule?

• HBr
• H₂S
• CBr₄
• PCl₃

Tags

NGSS.HS-PS1-1

Which statement explains why ethene does not dissolve in water?

• Ethene is polar and water is nonpolar.
• Ethene is nonpolar and water is nonpolar.
• Ethene is polar and water is polar.
• Ethene is nonpolar and water is polar.

A molecule containing polar covalent bonds is always polar.

• True
• False

Is this molecule polar or non-polar?

• Polar

• Non-polar

Tags

NGSS.HS-PS1-1

Is this molecule polar or non-polar?

• Polar

• Non-polar

Tags

NGSS.HS-PS1-1

NGSS.HS-PS2-6

Is this molecule polar or non-polar?

• Non-polar

• Polar

Tags

NGSS.HS-PS1-1