Chem II A refresher: intermolecular forces

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.

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NGSS.MS-PS1-4

Does CH₄ have hydrogen bonding?

• yes
• no

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

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NGSS.HS-PS1-3

Intermolecular force present in HCl?

• dipole dipole
• dispersion
• H-bond
• ionic

Ionic Bonding involves...

• The transfer of protons
• The transfer of nuetrons 
• The transfer of electrons
• None Of the above

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NGSS.HS-PS1-2

The weaker the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

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NGSS.HS-PS1-3

Which of the following molecules would have the lowest boiling point?

• CH₄
• C₂H₆
• C₃H₈
• C₄H₁₀

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NGSS.HS-PS1-3

HCl and F₂ both have a molecular mass of approximately 36 g/mol. Based on IMF, which will have a lower boiling point?

• HCl
• F₂

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NGSS.HS-PS2-6

Intermolecular forces are the forces

• within molecules

• between molecules