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| Chemical Reactions | 141 |
| Demonstrations (Educational) | 141 |
| Chemistry | 134 |
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| Science Activities | 61 |
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Peer reviewedGilbert, George L., Ed. – Journal of Chemical Education, 1984
Two demonstrations are described. The first shows the effect of polarity on solubility. The second is based on the unexpected formation of a precipitate of barium nitrate when barium carbonate or barium phosphate is treated with dilute nitric acid. List of materials needed and procedures used are included. (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedRunquist, Elizabeth A.; Runquist, Olaf – Journal of Chemical Education, 1972
The number of flies that crawl through a small hole from one chamber to another is used to demonstrate principles of chemical kinetics. (CP)
Descriptors: Chemical Equilibrium, Chemical Reactions, Demonstrations (Educational), Kinetics
Morton, R. D. – South Australian Science Teachers Journal, 1971
Descriptors: Chemical Reactions, Chemistry, Demonstrations (Educational), Energy
Peer reviewedWoods, G. T. – School Science Review, 1975
Describes the construction of a box that is filled with indicator of a particular concentration. A little acid is added to one side and a little alkali to the other so that the complete colour range of the indicator is observable. (GS)
Descriptors: Chemical Reactions, Chemistry, Demonstrations (Educational), Measurement
Peer reviewedMohan, Arthur G.; Turro, Nicholas J. – Journal of Chemical Education, 1974
Describes a chemiluminescence system which can be used to demonstrate the effects of certain factors which affect the rate of reaction (temperature, concentration, catalysis, solvent, etc.), and to perform experiments relevant to the mechanism of the system. (SLH)
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedPritchard, D. R. – Education in Chemistry, 1978
Describes an experiment to measure the relative rate of hydrolysis of the 2-x-2 methylpropanes, where x is bromo, chloro or iodo. The results are plotted on a graph from which the relative rate of hydrolysis can be deduced. (Author/GA)
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedGilbert, George L., Ed. – Journal of Chemical Education, 1987
Presented are three demonstrations for chemical education. The activities include: (1) demonstration of vapor pressure; (2) a multicolored luminol-based chemiluminescence demonstration; and (3) a Charles's Law/Vapor pressure apparatus. (RH)
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedAlexander, M. Dale – Journal of Chemical Education, 1971
Descriptors: Acids, Chemical Reactions, Chemistry, College Science
Peer reviewedChen, Philip S. – Journal of Chemical Education, 1970
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Dreisbach, Dale – J Chem Educ, 1969
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedMaric, Dubravko; Strajnar, Franjo – Journal of Chemical Education, 1983
An autocatalytic reaction is one in which the reaction is catalyzed by its own products. Materials needed and procedures used to demonstrate an autocatalytic reaction with bromethymol blue indicator are provided. (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedGilbert, George L., Ed. – Journal of Chemical Education, 1977
Describes a room-temperature method for demonstrating phosphorescence by including samples in a polymer matrix. Also discusses the Old Nassau Reaction, a clock reaction which turns orange then black. (MLH)
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedOrmerod, M. B.; Tomkins, T. J. – School Science Review, 1974
Descriptors: Chemical Reactions, Chemistry, Demonstrations (Educational), Evaluation
Peer reviewedSmith, N. H. P. – Journal of Chemical Education, 1975
Descriptors: Chemical Reactions, Chemistry, College Science, Demonstrations (Educational)
Peer reviewedGilbert, George L., Ed. – Journal of Chemical Education, 1979
Two demonstrations are presented: a verification of the discontinuity of matter based on the law of definite proportions, and a series of consecutive chemical reactions featuring reversible equilibria. (BB)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, Demonstrations (Educational)
