PDF-Oxidation (Redox) Control

Reduction in Ohiox2019s Ground Water Quality Division of Drinking and Ground Waters Technical Series on Ground Water Quality November 2014 2 T he Technical Series on Ground Water Quality This. Part 1. Notes 11. Beginning Unit 4. Salt on icy roads can make driving safer, but the salt that clings to the metallic parts of cars can cause them to corrode or rust relatively quickly. . This corrosion is one example of a chemical reaction called oxidation-reduction. You will learn about oxidation-reduction reactions.. Oxidation and Reduction. IB Core Objective. 9.1.1 Define . oxidation. and . reduction. in terms of electron loss and gain.. Define: Give the precise meaning of a word, phrase or physical quantity.. Oxidation and Reduction. Oxidation-reduction (. redox. ) reactions involve transfer of electrons. Oxidation – loss of electrons. Reduction – gain of electrons. Both half-reactions must happen at the same time. Starter . What is . redox. ?. Redox – what?. Oxidation and reduction happen at the same time. There is no net gain or loss of electrons.. e. -. You can’t just create them or destroy them!. Example: the . Oxidation-reduction reactions are integral to many aspects of inorganic chemistry. Building on your existing knowledge of electrochemistry, we will discuss some fundamental aspects of inorganic electrochemistry that you may not have previously considered (and therefore make some new connections to other areas of chemistry) and also introduce and use three diagram-. 14.1 Redox Equations (Review). 14.2 Electrode Potentials and the Electrochemical Series. 14.3 Predicting the Direction of Redox Reactions. 14.4 Uses for Electrochemical Cells. 14.1 Redox Equations. Learning Objectives:. Redox. – Reduction and Oxidation. REVISION. OILRIG. Oxidising and Reducing Agents. NEW LEARNING. Writing balanced ion electron equations involving oxygenated group ions.. Balancing . redox. equations.. REDOX REACTIONS . OILRIG – . O. xidation . I. s . L. oss of electrons. . R. eduction . I. s . g. ain of electrons. This is really important. Think of January sales!. OXIDATION NUMBER RULES. Oxidation numbers which are assigned to ions (of each element) in a compound help us to write half equations and full ionic equations.. electrons. gained. lost. Red. uction and . ox. idation reactions – . redox. . reactions. o. xygen atoms. lost. gained. A. re . these reactions . examples of oxidation or reduction?. 1. . C. . Organic matter generated with photosynthesis. Organic matter decomposes (. remineralized. ) during respiration. Photosynthesis. Reaction that converts CO. 2. plus nutrients (N, P, other micronutrients) to organic matter and oxygen. Dr. Namphol Sinkaset. Chem 201: General Chemistry II. I. Chapter Outline. Introduction. Balancing Redox Reactions. Galvanic Cells. Standard Reduction Potentials. . E. °. cell. , Δ. G. °, and . K. Textbook Chapter 20. Discovery Lab. What was clinging to the nail?. What happened to the color of CuSO. 4. solution?. What is the balanced equation?. Discovery Lab. What type of reaction occurred?. What are the four types of reactions we learned about previously?. Reactions. 17.2 Galvanic . Cells. 17.3 Standard . Reduction Potentials. 17.4. . Concentration Cells and Nernst Equation. 17.5. . Batteries and Fuel Cells. 17.6. . Corrosion and Corrosion Prevention. 2A. l. (s) + 3H. 2. SO. 4. (. aq. ) → A. l. 2. (SO. 4. ). 3. (. aq. ) + 3H. 2. (g). Using oxidation numbers, show which element has been oxidised and which has been reduced in this reaction. State the changes in oxidation numbers, including all signs..