PPT-7.3 Oxidation−Reduction Reactions

Rust forms when the oxygen in the air reacts with iron In this process electrons are transferred from one substance to another Learning Goal Define the terms oxidation and reduction. 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 . 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. 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 oxidation-reduction. You will learn about oxidation-reduction reactions.. REDOX PROCESSES. 9.1. OXIDATION AND REDUCTION. ESSENTIAL IDEA. Redox (reduction-oxidation) reactions play a key role in many chemical and biochemical processes.. NATURE OF SCIENCE (1.9). How evidence is used – changes in the definition of oxidation and reduction from one involving specific elements (oxygen and hydrogen), to one involving electron transfer, to one invoking oxidation numbers is a good example of the way that scientists broaden similarities to general principles.. Reduction. Learning Outcomes. Introduction to oxidation . and reduction. : simple examples . only, e.g. . Na with Cl. 2. , Mg with . O. 2. , Zn . with Cu. 2+. . Oxidation . and reduction . in terms of loss . Write the Molecular, Total Ionic, and Net Ionic Reactions for the chemical reactions below: . AgSO. 4. + K. 3. PO. 4. . . Reacting Magnesium Sulfate and Lithium Fluoride. GRADE!. Catalyst. Pick up Papers from the front. 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. 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.. Unit 4: Reactions in Aqueous Solutions Day 8: Metathesis Reactions and Gravimetric Analysis Warm Up WITHOUT LOOKING AT YOUR FLASH CARDS, FILL OUT THE FOLLOWING TABLE: TIME: 4 MINUTES WHEN DONE: In . your. seat:. With pen/pencil. With Notebook. With Handout. Packet from last class on your desk. Silent and ready for Do Now. After the . bell (2 min). Answer the following riddle:. What . occurs once in a minute, twice in a moment and never in one thousand . Mn. (III/IV). These are to be contrasted with the potentially rapid oxidations that occur with . photochemically. produced oxidants such as H. 2. O. 2. , O. 3. , the free radicals such as hydroxyl (-OH) and . 4.2: Classifying chemical reactions. Define three common chemical reaction types: . (1) precipitation; (2) neutralization; (3) redox. Classify reactions given a balanced chemical equation. Identify common acids & bases. Jennie L. Borders. Section 11.1 – Describing Chemical Reactions. In a chemical reaction, the reactants are written on the left and the products on the right.. The arrow that separates them is called yield..