1.7. Classifying Matter: Elements and Compounds, 15
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Hydrogen Balloon Explosions Balloons containing various substances and hydrogen are exploded, revealing characteristic flame colors. In all cases except one, the substance had been mixed with methanol and water.
Descriptive Chemistry |
Spectroscopy
Main Group Metals Various compounds of main group metals mixed with methanol are sprayed into the flame of a Bunsen burner.
Optimizing the Use of Personal Response Devices (Clickers) in Large-Enrollment Introductory CoursesKlaus Woelk This taxonomy of clickerselectronic devices with which students can remotely submit responses to questions posed by a teacherclassifies their use into two general categories. The first involves probing class attendance, preparedness, and subject matter interest, while the second pertains to the enhancement of conceptual understanding and content mastery. Woelk, Klaus. J. Chem. Educ.2008, 85, 1400.
Descriptive Chemistry |
Learning Theories |
Nonmajor Courses |
Student-Centered Learning
The Different Periodic Tables of Dmitrii MendeleevMichael Laing Between 1869 and 1905 the Russian chemist Dmitrii Mendeleev published several tables with different arrangements of the chemical elements. Four of these are compared with periodic tables by Russian scientists from 1934 and 1969. Laing, Michael. J. Chem. Educ.2008, 85, 63.
Descriptive Chemistry |
Enrichment / Review Materials |
Periodicity / Periodic Table
Incomplete Combustion of Hydrogen: Trapping a Reaction IntermediateBruce Mattson and Trisha Hoette In this demonstration, a hydrogen flame is played across the face of an ice cube and the combustion is quenched in an incomplete state. The resulting solution contains a stable side-product, hydrogen peroxide, whose presence can be verified with two simple chemical tests. Mattson, Bruce; Hoette, Trisha. J. Chem. Educ.2007, 84, 1668.
The Boron Family Volume 03, issue 19 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Descriptive Chemistry
The Sodium Family Volume 03, issue 20 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Descriptive Chemistry
The Calcium Family Volume 03, issue 21 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
