presentation of redox
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Presentation of Redox. By: Seth Princinsky, Joe bale, Brianna scott. Redox. Reactions include all chemical reactions in which atoms have reached their oxidation stage. Oxidation. Involves the loss of electrons - PowerPoint PPT PresentationTRANSCRIPT
Presentation of RedoxBy:
Seth Princinsky, Joe bale, Brianna scott
RedoxReactions include all chemical reactions in which atoms have reached their oxidation stage.
Oxidation• Involves the loss of electrons • Reduction reactions are vital for bio chemical
reactions and industrial processes. Redox reactions are used to obtain metals, to produce electrochemical cells.
• Reduction- Involves the gain of electrons.• Ex-. 2ca tO2-> 2Ca O
Examples of oxidation • Oxidation is found in fires.
• It causes the browning of fruit.
• Oxidation and reduction process together they react and the oxidation is called the oxidizing agent.
The earths surface and the earth
• The earths surface is a red boundary between the planets reduced the metalliccore.
• The redox is important both the formation of minerals and the mobilization of minerals.
• Redox can be seen in the color of rocks red is associated with oxidization conditions formation, Green is typically associated with reducing conditions.
• Famous examples of redox conditions affecting geological include uranium deposits and more moqui marbles.
Reduction • Reduction- originally referred to the loss in weight
upon heating a metallic ore such as a metal oxide to extract the metal. In other words, ore was reduced to metal.
• Antoine Lavoisier showed that this loss of weight was due to the loss of oxygen as a gas.
Oxidizers• Substances that have the ability to oxidize other
substances are said to be oxidative or oxidizing and are known as oxidizing agents, oxidants, or oxidizers.
• Oxidants are usually chemical substances with elements in high oxidation states or else highly electronegative elements that can gain extra electrons by oxidizing another substance.
Ways to remember redox
• Oil rig oxidation is lose of electrons reduction is a gain of electrons.
• Leo the loin says ger lose of the electrons is oxidation gain of electrons is reduction.
• Leoar says geroa lose of electrons is oxidation (reducing agent) And gain of the electrons is reduced (oxidizing agent).
Redox in biology • Photosynthesis involves the reduction of carbon
dioxide into sugars and the oxidation of water into molecular oxygen. The reverse reaction respiration oxidizes sugars to produce carbon dioxide and water.
• Cellular respiration is the oxidation of glucose to carbon dioxide in the reduction of oxygen to water.• This is the formula for cellular respiration when
they are oxidized and reducted. • C6H12O8+ 6 O2 -> 6CO2 + 6 H2O
Reducers • Substances that have the ability to reduce are
known as reducing agents or reductions. The reductant transfers electrons to another substance.
• Examples of reducing agents are lithium, sodium magnesium, zinc and aluminum.
• A method of reduction involves the use of hydrogen gas with palladium, platinum or nickel.
Redox industry • The primary process of reducing or at a high
temperature to produce metals is known as smelting.
• The production of compact discs depends on redox reaction, redox coats compact discs with a thin layer of metal.
Oxidizing agents• Oxidizing agents can be chemically hazardous.
• Oxidizing agent is a substance that is not necessarily combustible.
Redox cycling • It is a wide variety of aromatic compounds are
enzymatically reduced to form free radicals that contain one more electron then their parent compounds.
• Examples of redox cycling: herbicide paraquat, and menadione.