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Oxidation and reduction

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This presentation gives a short notion about oxidation,reduction and redox reaction

Oxidation and reduction

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Oxidation and Reduction

Oxidation and Reduction. Introduction to Oxidation and Reduction. Early attempts to define oxidation and reduction were based on observations of the gain and loss of oxygen and hydrogen during a chemical change.

988 views • 20 slides

Oxidation and Reduction

Oxidation and Reduction. Reactions that involve electron transfer Batteries and chemistry. What’s in a battery. A battery does work with electricity A circuit is required An electric current flows through the circuit A chemical reaction provides the electricity. Energy and electricity.

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Oxidation and Reduction

Oxidation and Reduction. Definitions of oxidation and reduction Oxidation numbers Redox equations. Oxidation - reduction. Oxidation is loss of electrons Reduction is gain of electrons Oxidation is always accompanied by reduction The total number of electrons is kept constant

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Oxidation and Reduction

Erasmus+. Oxidation and Reduction. Sustainability by Biotechnology. Renée Ristl. Evelin Szabados. Definition. Oxidation: electron donation Reduction : electron acceptance Example : Oxidation: 2 O 2-  O 2 + 4 e - Reduction : Fe 3+ + e -  Fe 2+

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Oxidation and Reduction

Oxidation and Reduction. as it pertains to biochemistry. please read . Read The Slow Burn. fig 13-22. fig 13-22. reduction potential can be measured. ref. cell. test cell. fig 13-23. Redox reactions as pairs of half-reactions. Fe 3+ + Cu +. Fe 2+ + Cu 2+.

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Oxidation and Reduction

Oxidation and Reduction. Mr Field. Using this slide show. The slide show is here to provide structure to the lessons, but not to limit them….go off-piste when you need to!

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Oxidation and Reduction

Oxidation and Reduction. Subtitle. Definition. Oxidation Reduction Reaction (Redox): A reaction in which electrons are transferred from one substance to another. Definition of Redox Reaction. Oxidation cannot occur without reduction Definition of Oxidized:

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OXIDATION AND REDUCTION

OXIDATION AND REDUCTION. IGCSE Chemistry 620. Gaining of oxygen is called oxidation. Carbon + Oxygen  Carbon dioxide Carbon is oxidised to carbon dioxide. Methane burns in oxygen. CH 4 + 2O 2  CO 2 + 2H 2 O Methane is oxidised to carbon dioxide and water. Rusting of iron

4.62k views • 13 slides

Oxidation and Reduction

Oxidation and Reduction. Redox. What exactly is a redox reaction?. Redox involves two simultaneous reactions An oxidation and a reduction Oxidation involves a loss of electrons Reduction involves a gain of electrons LEO the lion says GER. Redox.

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Oxidation and Reduction

Oxidation and Reduction. By : Samiyah Ali 11 th Grade . Oxidation reaction . Oxidation is a chemical change in which electrons are lost by an atom or group of atoms. Zn( s )  Zn 2+ ( aq ) + 2 e - (oxidized0

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Oxidation and Reduction

Oxidation and Reduction. Oxidation of Food: What a Waste!. Fruits and Vegetables oxidised when left in open air Solution: Seal in plastic wrap More radical: Add lemon juice to the cut fruit. People!. Oxidation of….

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Oxidation and Reduction

Oxidation and Reduction. Lecture 9. Redox in Aqueous Solutions. Redox reactions occur over a wide range of conditions: from groundwaters to magma. They are approached differently. We begin with aqueous solutions. Electrochemical Cells. A simple redox reaction would be:

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Oxidation and Reduction

Oxidation and Reduction. Topic 9. REDOX REACTIONS. REDOX = reduction &amp; oxidation O 2 (g) + 2 H 2 (g)  2 H 2 O( s ). REDOX REACTIONS. REDOX = reduction &amp; oxidation Corrosion of aluminum. 2 Al(s) + 3 Cu 2+ ( aq )  2 Al 3+ ( aq ) + 3 Cu(s). REDOX REACTIONS.

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OXIDATION AND REDUCTION

OXIDATION AND REDUCTION. Presented by: TEENA KATHPAL Lecturer Pt. J R Govt Polytechnic College Hoshiarpur. OXIDATION AND REDUCTION. CLASSICAL CONCEPT ELECTRONIC CONCEPT.

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Oxidation and Reduction

Oxidation and Reduction. Historically. Oxidation was defined as the addition of oxygen to a substance Eg . when coal was burned C + O 2 CO 2 or the rusting of iron 4Fe + 3O 2 2Fe 2 O 3.

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Oxidation and Reduction

Chapter 14. Oxidation and Reduction. Oxidation and Reduction. Oxidation - addition of Oxygen. Reduction - removal of Oxygen. In terms of electrons Oxidation is the loss of electrons. ( OILRIG) Reduction is the gain of electrons.

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Oxidation and Reduction

Oxidation and Reduction. Chapters 20 &amp; 21. Oxidation vs Reduction. Oxidation= A substance loses electrons Reduction A substance gains electrons 2Al (s) 0 + 3CuCl 2(aq) → 2AlCl 3(aq) + 3Cu (s) 0 Al (s) 0 → Al (aq) +3 aluminum oxno increases Cu (aq) +2 → Cu (s) 0 copper oxno decreases.

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Oxidation and Reduction

Oxidation and Reduction. Oxidation. Losing electrons The higher positive oxidation number the more the atom has loss control over the electrons, therefore the more oxidized it is. Reduction. Gaining electrons

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Oxidation and Reduction

Oxidation and Reduction. Chemistry 3B 2014. Oxidation and Reduction. apply the table of Standard Reductions Potentials to determine the relative strength of oxidising and reducing agents to predict reaction tendency

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Oxidation and Reduction!

Oxidation and Reduction!. Aka: Redox. Oxidation and Reduction is the concept that helps us understand how/why elements gain/ lose electrons An important Mnemonic is: LEO says GER Lose electrons= oxidation, Gain electrons = Reduction ( OilRig …) idonlike.

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Oxidation and Reduction

Oxidation and Reduction. Or, “Do you know where your electrons are?”. Definitions. Oxidation is the process of losing electrons (oxidation state becomes more positive) Na  Na + + 1e - Reduction is the process of gaining electrons (oxidation state becomes more negative) Cl + 1e -  Cl -.

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Oxidation and Reduction

Oxidation and Reduction. ………………………. Objectives. Oxidised, reduced Definition- oxidising/reducing agent, oxidant/reductant Rules of oxidation number Refer to oxidation number and decide-reduced or oxidised. Redox Reactions. = reactions involving RED uction and OX idation. Reduction.

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