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JOSEPH S. SCHMUCKLER Chairman of Science Education Temple University 345 Rilter Hall Philadelphia. PA 19122
NOTE: At the end of Carmady's article is an interesting reference
Balancing Equations and Nomenclature
of a Agmg "Silver Tree." The reference dates back to 1836.
"Balancing Chemical Equationa," Lawrence E. Strong, Chemistry, 47, [9] 13-15 J a n u a r y 1974.
"Periodic Table-Rosetta S t o n e of t h e Universe," f r o m Chemistry, 46, [7] p. 24.
T h e author shows how to distinguish simple equations from the more complex equations by counting the number of times a given element aooears in an eauation. He then oroceeda to show the reader how to convert complex equations into simple ones, making the equation easier to balance.
The Periodic Table, Some Hlstory
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"Revised Inorganic (Stock) Nomenclature for The General Chemistrv Student." Robert C. Brasted. J. CHEM. EDUC..
35, [3] 137-139 (1958). This is a mod review article on some of the basic oractices to use in naming inorganic compounds. HravtPd shows the classical nnmc tor many uf thc familiar compounds whuxe fwmulae arc used in brof the Stack and Surk-Werner gmning chemistry but stmses the naming system.
The Mole "The Mole Concept" Edited b y Dudley Herron, J. C H E M . EDUC., 52, [ l l ] 725-726 (1975).
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The two contributed oaoers done hv Donald F. Clnnren and -~~~~ ~, Howard F. Hemp contain exwllent idear fur presenting this mnjor concept to beginning studenu. Some teachemmay find Hemp's "Molp Calculator" a useful device for reproducing for students in their classes. ~
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A quote
"Mendeleev Centennial" J. CHEM. EDUC., 46, [3] (1969). This issue contains two articles of historical importance to American Chemistry Teachers: "American Forerunners of Periodic Law," George B. Kauffman, pp. 128-135. "Virtually every book on inorganic chemistry or the history of chemistry which discusses the periodic law does not fail to consider various predecessors and forerunners of Mendeleev. Yet only in a few detailed monographs on the periodic law are American predecessors considered, and consequently their contributions remain unknown to majority of chemists and even to historians of science." Descrihed by Kauffman are the works of Oliver W. Gibbs (1822-1908), Josiah P. Cooke, Jr. (1827-1894), Gustovus D. Hinricks, (1836-1923), and Lewis R. Gihbes. "The Priority Conflict between Mendeleev and Meyer," Johannes W. Van Spronsen, pp. 136139.
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"Thelongest imttleorrr priority in t h e d i s w e r y of theperiodic system uf chemical elements was fought brrwem Dimitri ouhlished his first I. Mendelcev and l.othar Mewr . . Mwer . . periodic system after ~ e n d e i e e v ."Spronsen indicates ". . . that Mendeleev did not tend to overestimate the value of the contributions uf a t h ~ scientirtr. r Hn justiiied thm pnrtirularly by raymg . that they prrdictrd no ncw clements nnd th+rt.fore gave no evidence of h w i w comprrhendrd the broad barir of the new natural law."
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Lab Experiment
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"A S t u d y of the Silver T r e e Experiment," Walter R. Carmody and J a c k Wiersma, J. C H E M . EDUC., 44, [7] 417-420 (1967).
Ifonuo. /or ('hem,$rr> I n b:c~enmen,al.S...enrr FAtlrr. l.lr,d F hlalrn. U'. H Fr*man and C" sen Pran
