1666 TEKS header image

Knowledge and Skills Statement

Science concepts. The student understands how matter is accounted for in chemical reaction.

a type of chemical process typified by the exchange of one or more hydrogen ions, H+

a chemical change that occurs when two or more substances combine to form a new substance; the rearrangement of atoms to produce new compounds

material substance that occupies space, has mass, and is composed predominantly of microscopic particles

any chemical reaction in which the oxidation number of a participating chemical species changes due to an exchange of electrons

a reaction that is most often a double displacement reaction involving the production of a solid residue

Research

Craig, Norman C. and Cortland S. Hill. "Do-It-Yourself Experiments for the Instructional Laboratory." Journal of Chemical Education 89, no. 6 (2012): 755. https://www.proquest.com/scholarly-journals/do-yourself-experiments-instructional-laboratory/docview/1013851691/se-2

Summary:  In a new design for experiments in general chemistry, students perform proven experiments to gain experience with techniques for about two-thirds of a laboratory session and then spend the last part in the do-it-yourself component, applying the techniques to an experiment of their own design. An emphasis on classifying inorganic reactions as acid-base, redox, complexation, and precipitation supports this program. The do-it-yourself component engages students in design and interpretation within a reasonable framework.

Research

Macrakis, Kristie, Elizabeth K. Bell, Dale Perry, and Ryan D. Sweeder. "Invisible Ink Revealed: Concept, Context, and Chemical Principles of "Cold War" Writing." Journal of Chemical Education 89, no. 4 (2012): 529-532. https://www.proquest.com/scholarly-journals/invisible-ink-revealed-concept-context-chemical/docview/935597878/se-2

Summary:  By modifying secret writing formulas uncovered from the archives of the East German Ministry of State Security (MfS or Stasi), a novel general chemistry secret writing laboratory was developed. The laboratory combines science and history, highlighting several fundamental chemical principles related to the writing. These include catalysis, redox reactions, kinetics, complex formation-precipitation, and acid-base reactions. After a background historical presentation, students don the mantle of counterintelligence to discover the location of a terrorist bomb on campus.