Properties of Substances

Which property is not affected by the polarity of a molecular bond?

• Boiling point

• Surface tension

• Electrical conductivity

• solubility

Which property decreases with stronger intermolecular forces?

• Surface tension

• vapor pressure

• melting point

• conductivity

What is the main intermolecular force in methanol?

• hydrogen bonding

• dipole-dipole forces

• london dispersion forces

• none

Larger molecules will have more of which intermolecular force?

• hydrogen bonding

• dipole-dipole forces

• london dispersion forces

• none

Which of the following is most likely to be soluble with water?

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Tags

NGSS.HS-PS1-3

Which of the following would you need a hotplate to test?

• conductivity

• viscosity

• surface tension

• boiling point

Which of the following can you test with only a ruler?

• conductivity

• viscosity

• surface tension

• boiling point

Which intermolecular force does every molecule have, no matter the polarity or shape?

• hydrogen bonding

• dipole-dipole forces

• london dispersion forces

• none

What are hydrogen bonds?

• Any time hydrogen is bonded to another atom

• Any time hydrogen is bonded to N, O, or F

• An interaction between molecules with H-N, H-O, or H-F bonds in them

• Any attraction to hydrogen atoms

What atomic property do we use to determine bond polarity?

• Atomic radius

• Electronegativity

• Type of element

• Atomic mass