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Chapter 10: Q77E. (page 592)
What is the coordination number of a chromium atom in the body-centered cubic structure of chromium?
\(8\)is the Coordination number of a chromium atom.
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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:
\(\begin{array}{l}{\rm{(a)CaC}}{{\rm{l}}_{\rm{2}}}\\{\rm{(b)SiC}}\\{\rm{(c)}}{{\rm{N}}_{\rm{2}}}\\{\rm{(d)Fe}}\\{\rm{(e)C(graphite)}}\\{\rm{(f)C}}{{\rm{H}}_{\rm{3}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{C}}{{\rm{H}}_{\rm{3}}}\\{\rm{(g)HCl}}\\{\rm{(h)N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}\\{\rm{(i)}}{{\rm{K}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\end{array}\)
Predict which will have the higher boiling point: ICl or Br2.Explain your reasoning.
Define the following and give an example of each:
(a) Dispersion Force
(b) Dipole-dipole Attraction
(c) Hydrogen Bond
Explain why liquids assume the shape of any container into which they are poured, whereas solids are rigid and retain their shape.
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