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Constructing Chemical Concepts through a Study of Metals and Metal Ions: Guided Inquiry Experiments for General Chemistry
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Abstract
This paper describes a set of inquiry-based experiments designed to help students develop an understanding of basic chemical concepts within the framework of studying the properties and reactivity of metals and metal ions. The students perform these experiments before the concepts are discussed in class, with the emphasize on the construction of meaning from observation, measurement, and data analysis. The set includes: Are All Pennies the Same?, which introduces students to the differences between extensive and intensive quantities. How Much is Enough?, examines the quantitative aspects of the reaction between metals and hydrogen ions leading to the concept of the mole and stoichiometric calculations. How Much is Too Much?, which identifies and distinguishes between limiting reagents, excess reagents, spectator ions and reactant ions. What is an Active Metal?, provides the observations needed to sort common metals into an activity series and How Active are the Active Metals?, allows students to develop a quantitative model of metal activity.
Keywords (Audience):
High School / Introductory ChemistryKeywords (Domain):
CurriculumKeywords (Pedagogy):
Inquiry-Based / Discovery LearningKeywords (Subject):
ElectrochemistryCiting Articles
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This article has been cited by 7 ACS Journal articles (5 most recent appear below).
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John H. Kalivas2007 970 (), 140-156This chapter describes teaching approaches used in the three laboratory courses general chemistry, quantitative analysis, and instrumental analysis that assist students to attain expertise with process skills needed for success. The courses use active ...
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C. Jayne WilcoxJournal of Chemical Education2001 78 (1), 62Modification of Small-Scale One-Pot Reactions to an Inquiry-Based Laboratory Exercise
C. Jayne WilcoxJournal of Chemical Education2001 78 (1), 62I have modified small-scale, one-pot reactions reported in the literature to a guided inquiry approach. These reactions involve aqueous ionic equilibria centered around three different cations. Each cation has its own set of self-contained reactions that ...
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- Received: August 03, 2009
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