Compares the costs of recycling to that of producing aluminum and iron from their ores. Students look at the economic and environmental advantages and disadvantages associated with each process.
Countries: CA
-
Predicting Oxidation-Reduction Reactions
Explains the terms spontaneous and non-spontaneous, shows the strength of oxidizing and reducing agents, and develops a reduction half-reaction table. Explains the spontaneity rule, performs experiments to test it and records the results on a data table.
-
Introduction to Chemical Equilibrium Systems
Explains several reversible reactions and a juggler demonstrates the differences between steady state, open and closed systems. Experiments using evaporation show the difference between an open and closed system. Defines equilibrium.
-
Extending the Reduction Half-Reaction Table
Performs experiments to: identify the chemical responsible; compare relative strengths on non-metallic oxidizing agents; develop a reduction half-reaction table; and combine this table with the one developed in the previous program.
-
Dynamic Equilibrium
Demonstrates how change in temperature can favour either a forward or reverse rate of a reaction. On a molecular level, the hydrogen iodine, hydrogen iodide equilibrium shows what happens from the start of a reaction until the system reaches equilibrium.
-
Writing and Balancing Oxidation-Reduction Reactions
Focuses on early electronics. Students perform a lab demonstration to make a printed circuit board. Introduces and reviews the five-step method for writing redox reactions.
-
Opposing Reactions in Equilibrium Systems
The synthesis of ammonia shows how to determine the product and reactant present at equilibrium. The equilibrium law expression is explained, and written examples are shown for various reactions. Discussea the equilibrium constant, K.
-
Corrosion Reactions
Explains why corrosion is a major concern of industry and consumers. Shows various everyday examples of corrosion reactions and how they can be prevented. The five-step method for writing these reactions is used throughout the program.
-
Opposing Reactions and Le Châtelier’s Principle
Explains Le Châtelier’s principle and shows how his work is used to identify factors that can affect equilibrium concentrations. Demonstrates how equilibrium can be shifted by changing temperature or the concentrations of various reagents.
-
Quantiative Analysis Using Redox Titration
Emphasizes the usefulness of redox titration as an analytical technique. Examines titration procedures and techniques and explains how to determine the endpoint of a redox titration.