PPT-Oxidation-Reduction (

Redox Reactions Chapter 20 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 oxidationreduction You will learn about oxidationreduction reactions. Part 1 . Zagazig. University . Clinical Pharmacy . Programe. . Analytical Chemistry Department . PC 306. 1. Definition. Old . definition. Oxidation. is the reaction of substance with oxygen. Reduction . 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. IGCSE Chemistry . 620. OXYGEN. Gaining of oxygen is called oxidation.. Carbon + Oxygen .  Carbon dioxide. Carbon is oxidised to carbon dioxide.. Methane burns in oxygen.. CH. 4. . + . 2O. 2. . It’s everywhere man!. Q: What does it involve?. A: The combination of an element/molecule. with Oxygen in the air or water…. Q: What is the balanced chemical equation?. __Fe. 3. C. +. __O. Chemical Equations. This equation means:. 4 Al(. s. ) + 3 O. 2. (. g. ) 2 Al. 2. O. 3. (. s. ). 4 Al atoms + 3 O. 2. molecules yield 2 molecules of Al. 2. O. 3. 4 Al . moles. The oxidation state is a “measure of the degree of oxidation of an atom in a substance” and it is the fundamental key to understanding redox reactions, reaction mechanisms, catalysis, etc. I Oxidation Bingo. Draw a grid of 16 squares and write in 16 numbers between . -7 and +7 . . Cross off the answers as they appear. When you get all 16 correct....you know the rest!. You can use a number more than once or not at all. . Oxidation and reduction. Oxidation and reduction – oxygen . transer. A substance has been . oxidised. if it . gains oxygen. . Oxidation is gain of oxygen.. A substance has been . reduced. if it . Aka REDOX reactions. Electrochemistry. The study of chemical reactions involving the transfer of electrons between reactants. . Oxidation. Loss of electrons. happens at the anode. Reduction. gain of electrons. 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. . What is this NCEA Achievement Standard?. When a student achieves a standard, they gain a number of credits. Students must achieve a certain number of credits to gain an NCEA . certificate (80 for Level 3). Energy transfers. You. Your lunch. Overview: Life Is Work. © 2014 Pearson Education, Inc.. Cells use chemical energy stored in organic molecules to regenerate ATP, which powers work.. Living cells require energy from outside sources.. 1.2.3: Redox explains the chemistry behind batteries and electroplating precious metals onto strong base metals. It also explains how to break apart water into hydrogen and oxygen, and lots more.. 4: These 2 reactions are always paired and balanced.. Simulating the Mechanism of Thermal Oxidation of Silicon The Atomic-scale Structure of the SiO 2 -Si(100) Interface Outline Limitations of the well-known Deal-Grove model A short dip into the studies by