Chapter 10: Q66 E (page 591)
As it cools, olive oil slowly solidifies and forms a solid over a range of temperatures. Which best describes the solid?
(a) ionic (b) covalent network (c) metallic (d) amorphous (e) molecular crystals
Option D is the correct answer.
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At 20.0 °C, the vapor pressure of ethanol is 5.95 kPa, and at 63.5 °C, its vapor pressure is 53.3 kPa. Use this information to estimate the enthalpy of vaporization for ethanol.
What types of liquids typically form amorphous solids?
What is the evidence that all neutral atoms and molecules exert attractive forces on each other?
Explain why a hydrogen bond between two water molecules is weaker than a hydrogen bond between two hydrogen fluoride molecules.
Identify the type of crystalline solid (metallic, network covalent, ionic, or molecular) formed by each of the following substances:
\(\begin{array}{l}{\rm{(a)CaC}}{{\rm{l}}_{\rm{2}}}\\{\rm{(b)SiC}}\\{\rm{(c)}}{{\rm{N}}_{\rm{2}}}\\{\rm{(d)Fe}}\\{\rm{(e)C(graphite)}}\\{\rm{(f)C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}\\{\rm{(g)HCl}}\\{\rm{(h)N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}\\{\rm{(i)}}{{\rm{K}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\end{array}\)
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