Exam 11: Intermolecular Forces and the Physical Properties of Liquids and Solids

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Choose the response that lists the member of each of the following pairs that has the higher boiling point. I.H2O or KI,II.HF or HI,III.Cl2 or Br2

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Which liquid is expected to have the larger surface tension at a given temperature,CCl4 or H2O? Briefly explain.

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Poor conductor of heat and electricity,soft,and low melting point are properties which describe a(n)_______________ crystal.

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___________ ____________ are described by an instantaneous dipole.

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Which of the following pure substances has the highest boiling point?

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The strongest intermolecular interactions between ethyl alcohol (CH3CH2OH)molecules arise from

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The shape of the water-to-glass meniscus results from the strong adhesive forces between glass and water.

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Which substance has the lowest vapor pressure at room temperature?

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Variable melting point,variable hardness,and good conductor of heat and electricity are properties which describe a(n)_______________ crystal.

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Which of the following atoms does not participate in hydrogen bonding?

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___________ ____________ is another name given for dispersion forces.

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Solids are generally most stable in crystalline form.

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_______________ ________ are solids that lack a regular three-dimensional arrangement of atoms.

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What types of intermolecular forces exist between hydrogen fluoride molecules? I.London forces II)dipole-dipole interactions III)hydrogen bonding IV)ion-dipole interactions

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Only molecules which do not have dipole moments can experience dispersion forces.

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Which kinds of intermolecular forces exist between propane molecules? I.dispersion forces II)dipole-dipole interactions III)ion-dipole interactions

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Below is the phase diagram for sulfur.Which phase has the highest density at 119°C? Below is the phase diagram for sulfur.Which phase has the highest density at 119°C?

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For which of the following pure substances are the intermolecular interactions entirely due to dispersion forces?

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Ethanol (C2H5-OH)will have a greater viscosity than ethylene glycol (HO-CH2CH2-OH)at the same temperature.

(True/False)
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Which of the following pure substances has the highest boiling point?

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