Data Analysis Summary
Ionic solids:
Covalent molecular solids:
Covalent network solids:
Metals:
Classification of unknown:
Implications and Applications
- Explain the odor data in terms of bond types. Do you think that a substance can be relatively volatile and not have an odor? Give an example. How could the sensitivity of one's nose affect the observations made?
- Explain differences in melting points in terms of types of bonding in the four substances.
- Does a comparison of melting points give any information about the relative strengths of ionic and covalent bonds? Explain.
- Are intermolecular or intramolecular forces greater for lauric acid? Explain your answer.
- How can the results of the solubility tests be explained? What is the major difference in the nature of water and cyclohexane as solvents?
- Explain the classification of the unknown as ionic solid, covalent molecular solid, covalent network solid, or metal.
Activity 1 was adapted from Experiment B22 in the following source:
Brooks, D.W., (Producer.) (1989). Doing chemistry [Videodiscs, computer program and supporting written materials]. Washington: American Chemical Society.
Chemical Bonding (BOND)
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