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Hardness of Solid Substances - Grinding A number of metals and nonmetals are ground with a mortar and pestle. The nonmetals shown here are all soft (due to weak intermolecular forces), but the metals vary in hardness.
On Capillary Rise and NucleationR. Prasad A comparison of capillary rise and nucleation shows that both phenomena result from a balance between two competing energy factors: a volume energy and a surface energy. This comparison may help to introduce nucleation with capillary rise, a topic familiar to students. Prasad, R. J. Chem. Educ.2008, 85, 1389.
Liquids |
Materials Science |
Metallurgy |
Solids
Polymeric, Metallic and Other Glasses in Introductory ChemistryStephen J. Hawkes Polymeric, metallic, and other glasses and their importance are described in a manner suitable for introductory chemistry. Hawkes, Stephen J. J. Chem. Educ.2008, 85, 1377.
Consumer Chemistry |
Materials Science |
Phases / Phase Transitions / Diagrams |
Solids
Forecasting Periodic Trends: A Semester-Long Team Exercise for Nonscience MajorsJohn Tierney Teams of students in a course for nonscience majors identify trends among the properties of elements in the periodic table, use Excel to plot and produce best-fit equations to describe relationships among those properties, and apply the resulting formulas to predict and justify the properties of missing elements. Tierney, John. J. Chem. Educ.2008, 85, 1215.
Gold LayersWilliam F. Coleman Four spheres surrounding a tetrahedral hole and six spheres surrounding an octahedral hole are highlighted and are partially transparent to show the holes.
Crystals / Crystallography |
Metals |
Solids |
Enrichment / Review Materials
SolidsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solids
Burning Magnesium (GCMP)David M. Whisnant Burning Magnesium: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will look at the reactions of two elements with oxygen in air. We will begin by observing the reaction of magnesium metal with oxygen when the metal is heated in air. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
