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Search results “Determining oxidation numbers khan academy”

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Oxidation and reduction. Oxidation states.

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We'll learn how to determine the oxidation numbers or oxidation states for a the elements in a chemical compound. The oxidation numbers tell us how electrons are divided up or shared between atoms in a chemical compound. The oxidation numbers also tell us how electrons move in an oxidation reduction (redox) reaction. There are a set a rules that we use to determine oxidation number. Group 1A elements (alkalai metals) always have an oxidation of +1. Group 2A elements (alkaline earth metals) always have an oxidation number of +2. Elements on their own have an oxidation number of 0, and monatomic ions have an oxidation number that is equal to the ionic charge.
Views: 1050902 Tyler DeWitt

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How to assign oxidation numbers to the atoms in a molecule. 1. Elements have oxidation number = 0 2. Hydrogen's always +1 (except in "hydrides") 3. Oxygen's always -2 (except in "peroxides") 4. Other atoms get the charge they prefer, as long as the sum of oxidation numbers for all atoms = the total charge on the atom.
Views: 714821 chemistNATE

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This chemistry video tutorial provides a basic introduction on how to calculate oxidation numbers. It discusses how to find the oxidation states of elements such as Zn, O2, F2, and P4 and how to find the oxidation numbers of polyatomic ions such as SO4 2-, PO4 3-, NO3-, ClO4-, Hg2+2, O2-2 and so forth. Examples include transition metals found in ionic compounds such as Fe3O4, V2O5, and K2CrO4. In addition, this video explains what's behind a fractional oxidation state. For instance, the oxidation number of Fe in Fe3O4 is a fraction +8/3. This tutorial relates oxidation states to electronegativity and positive and negative partial charges. Practice problems include OF2, HCl, NaH, BH3, H2S, SO2, NH3, NO2, CH4, and CO2. This video covers all of the rules relating to oxidation numbers. For instance, Hydrogen usually has a +1 oxidation state when bounded to a nonmetal but it tends to have a -1 oxidation number when attached to a metal. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/

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Get the full course at: http://www.MathTutorDVD.com Learn how to assign oxidation numbers to elements of a compound in chemistry.
Views: 140079 mathtutordvd

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Many practice problems for how to calculate and determine oxidation numbers, often referred to as oxidation states. To figure out oxidation numbers for elements in a compound, we have to look on the periodic table and consult a list of rules. For neutral compounds, the oxidation numbers add up to zero. For polyatomic ions, the oxidation numbers add up to charge of the ion.
Views: 388361 Tyler DeWitt

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This chemistry video tutorial shows you how to determine the oxidation state or oxidation number of an element in a compound or a transition metal within a polyatomic ion. This video contains plenty of examples and practice problems for you to work on. Here is a list of topics: 1. Assigning Oxidation Numbers To Elements in Compounds 2. Determining The Oxidation States of Transition Metals 3. Calculating The Oxidation Number of a Element in a polyatomic ion 4. Oxidation Number Rules - Pure Elements Always Zero 5. Oxidation States - Electronegativity - Fluorine is -1 6. Oxidation Rules - Oxygen Usually is -2 in Oxide and -2 in Peroxide 7. Hydrogen is +1 when bonded to a nonmetal and -1 when bonded to a metal 8. Transition Metals - Multiple Oxidation States

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This is an introduction to oxidation reduction reactions, which are often called redox reactions for short. An oxidation reduction (redox) reaction happens when electrons are transferred between atoms. A loss of electrons is called oxidation, and we say that atom has become oxidized. A gain of electrons is called reduction, and we say that the atoms has become reduced. The two separate parts (oxidation and reduction) of an oxidation reduction (redox) reaction are called half reactions. Two half reactions can be put together to make the whole reaction. Oxidation numbers are numbers that can be written above atoms to show whether they are gaining or losing electrons.
Views: 1450330 Tyler DeWitt

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This chemistry tutorial discusses how to assign oxidation numbers and includes examples of how to determine the oxidation numbers in a compound following some simple rules. https://www.thechemistrysolution.com
Views: 205330 TheChemistrySolution

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All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they carry energy with them, and that transfer of energy is what makes all life on earth possible. **Special Thanks to Matt Young at the University of Montana (Geosciences Department, Environmental Biogeochemistry Lab) who helped with the chemical demonstrations.** Oxidation 1:42 Reduction 1:03 Oxidation Numbers 3:29 Redox Reactions 5:59 Oxidation Reactions 6:28 Balancing Oxidation Reactions 7:18 Also thank you to the following chemistry teachers for assistance: James Sarbinoff Rachel Wentz Edi González Lucas Moore Chris Conley Addie Clark Julia Rosinski Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1991634 CrashCourse

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Mr. Key outlines how to use the oxidation number method to balance Redox reactions under acidic or basic conditions.
Views: 58924 JFR Science

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More practice calculating oxidation states

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Oxidation reduction (or redox) reactions

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Shows how to determine the oxidation number of an atom in a compound or polyatomic ion.
Views: 78285 ChemFlicks

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How to Identify Oxidation Numbers in Coordination Compounds - Chemistry Tips. Looking for college credit for Chemistry? Enroll at http://www.straighterline.com/college-courses/general-chemistry-i.cfm Please like and comment!
Views: 72497 StraighterLine

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This chemistry video tutorial provides a basic introduction into naming coordination compounds. It contains plenty of examples and practice problems on the nomenclature of coordination compounds. It discusses how to determine the oxidation state of the transition metal cation and how to name it when the complex ion is cation and when it's the anion. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/

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Oxidation Numbers: This video is a prerequisite for balancing of equation using Oxidation number method and Ion electron method. Before balancing equations make sure you watch this video. Redox Reactions Assigning oxidation numbers for elements in molecules Rules for assigning oxidation numbers Exceptions, Peroxides,Fluorides of Oxygen Worked out examples Suitable for High school Chemistry SCH4U, AP Chemistry, IB Chemistry, CBSE, IGCSE, ISC, ICSE, ALevel, OLevel SAT Kemtweet, Vinstan, http:www.vinstan.com for more stuff on chemistry Rules for complex ions are different K3[Fe(CN)6] K has +1 oxidation state Fe = X unknown CN = -1 (You need to know the oxidation numbers of ligands only then you can proceed) K3[Fe(CN)6] (3x+1) + [X + (6 x -1) = zero 3 +X -6 = zero X = +3 Therefore the oxidation number of Fe = +3 Hope this helps Ligands can be neutral positive or mostly negative. H20 and NH3 are neutral ligands More Videos and Lessons at http://www/vinstan.com http://www.youtube.com/user/globetroting/featured NOTE If you are new to balancing, then viewing the videos in the following sequence should help. 1. How to assign oxidation number http://www.youtube.com/watch?v=lxEvuJPTvew 2. Balancing equation using oxidation number method http://www.youtube.com/watch?v=mvbPtQfAfUQ 3. Balancing equations using ion-electron or half reaction method http://www.youtube.com/watch?v=FFKZYED8VVY NOTE If you are new to balancing, then viewing the videos in the following sequence should help. 1. How to assign oxidation number http://www.youtube.com/watch?v=lxEvuJPTvew 2. Balancing equation using oxidation number method http://www.youtube.com/watch?v=mvbPtQfAfUQ 3. Balancing equations using ion-electron or half reaction method http://www.youtube.com/watch?v=FFKZYED8VVY
Views: 87195 Vinstan

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This chemistry video tutorial provides a basic introduction into oxidation reduction reactions also known as redox reactions. This video explains how to identify the substance that is oxidized and reduced. In addition, it explains how to determine which compound or element is the reducing agent and which is the oxidizing agent. Oxidation always occur with the loss of electrons and reduction occurs with the gain of electrons. Oxidation also occurs with an increase in the oxidation number of an element where as reduction always occur with a decrease in the oxidation state of an element. This video also explains how to identify if a chemical reaction is a redox reaction. Combustion reactions and single replacement reactions are always redox reactions. Double replacement reactions such as precipitation reactions and acid base neutralization reactions are never redox reactions. Combination / Synthesis and Decomposition reactions may or may not be redox reactions. This video contains plenty of examples and practice problems. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/

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Typical examples of how to determine the oxidation numbers of elements in a compound, as well as discovering which element was oxidized or reduced, and what species serves as the oxidizing or reducing agent. Produced by Ray Dickinson, General & Introductory Chemistry Instructor at Cleveland State Community College, CSCC
Views: 41480 SlowChem

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This chemistry video tutorial provides a basic introduction into complex ions, ligands, and coordination compounds. A complex ion typically consist of a transition metal cation bounded to ligands which can be neutral molecules or ions. The number of ligands attached to the transition metal ion is known as the coordination number. This video explains how to determine the oxidation state of the transition metal ion in a complex ion and within a coordination compound. A coordination compound consist of a complex ion and a counterion. The counterion may be a cation or an anion. This video briefly discusses werner's theory of coordination compounds and the concept of primary valence and secondary valence as it relates to the transition metal ions in complex ions. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/

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This video explains how to determine the oxidation numbers of all elements in a compound.
Views: 81250 Mark Rosengarten

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031 - Redox Reactions In this video Paul Andersen explains how redox reactions are driven by the movement of electrons from the substance that is oxidized to the substance that is reduced. Oxidation is the loss of electrons and reduction is the gaining of electrons. Since electrons are not normally displayed in a chemical equation oxidation numbers are important in determining what atom is oxidize and what atom is reduced. Redox reactions are important in energy production and can also be used in basic titrations. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: Administration, U. S. Department of Transportation's National Highway Traffic Safety. English: Recreational and Cultural Interest Area Symbol for Food Either RM-050 (brown) or D9-8 (blue), [object HTMLTableCellElement]. US MUTGD. http://commons.wikimedia.org/wiki/File:RM-050_Food_sign.png. "File:@hand Rig.jpg." Wikipedia, the Free Encyclopedia. Accessed September 7, 2013. http://en.wikipedia.org/wiki/File:@hand_rig.jpg. "File:HAZMAT Class 3 Gasoline.png." Wikipedia, the Free Encyclopedia. Accessed August 27, 2013. http://en.wikipedia.org/wiki/File:HAZMAT_Class_3_Gasoline.png. "File:Isooctane-3D-balls.png." Wikipedia, the Free Encyclopedia. Accessed September 7, 2013. http://en.wikipedia.org/wiki/File:Isooctane-3D-balls.png. "File:Winkler Titration Prior Titration.jpg." Wikipedia, the Free Encyclopedia. Accessed September 7, 2013. http://en.wikipedia.org/wiki/File:Winkler_Titration_Prior_Titration.jpg. Kdv2754. English: A Ball and Stick Model of a Triglyceride Fat., September 31, 2008. Own work. http://commons.wikimedia.org/wiki/File:Triglyceride_ballandstick.GIF.
Views: 365792 Bozeman Science

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How to determine the oxidizing and reducing agent in a redox reaction. By Jay Skipper.

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Redox Balancing | Oxidation Number Method Link to my chemistry page http://www.vinstan.com Balancing of a redox reaction Using Oxidation Number Methods Assigning oxidation numbers - Refer to my video on assigning oxidation numbers Identify oxidation half reaction Identify reduction half reactions Make the number of electrons loast = to the number of electrons gained. Assign coeffients to reactants and products Balance the remaining elements by inspection An you have a balanced equation Suitable for AP Chemistry IB Chemistry IGCSE CBSE ICSE SCH4U CBSE Any one learning balancing of redox equations Please subscribe, like and post your questions, queries or comments. How to determine oxidation numbers http://youtu.be/lxEvuJPTvew More Videos and Lessons at http://www/vinstan.com http://www.youtube.com/user/globetroting/featured NOTE If you are new to balancing, then viewing the videos in the following sequence should help. 1. How to assign oxidation number http://www.youtube.com/watch?v=lxEvuJPTvew 2. Balancing equation using oxidation number method http://www.youtube.com/watch?v=mvbPtQfAfUQ 3. Balancing equations using ion-electron or half reaction method http://www.youtube.com/watch?v=FFKZYED8VVY
Views: 181067 Vinstan

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Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what determines oxidation numbers.
Views: 1967 Michel van Biezen

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Correcting an error in the last video regarding hydrogen peroxide.

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Description
Views: 134 inorganic chemistry

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This lesson shows how to balance redox reactions using the method of oxidation numbers or oxidation states. This method is useful for simpler redox reactions that do not take place in acids or bases.
Views: 68706 IsaacsTEACH

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SCH4C Electrochemistry
Views: 7913 Rob Bell

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We'll go step by step through how to balance an oxidation reduction (redox) reaction in basic solution. The process is similar to balance an oxidation reduction equation in acidic solution. Most importantly, both charges and atoms must balance. Here are the steps: first, calculate oxidations numbers for all the elements in the equation. Next, figure out what is being oxidized and what is being reduced. Then, write half reactions for the oxidation and reduction. After that, balance each half reaction: first, for the atoms other than O and H, then for O and H, and finally for charge by adding electrons. After being balanced, the oxidation and reduction half reactions are ready to be added back to together. Make sure that the number of electrons is the same in the oxidation and reduction half reactions. If they are not, multiply one or both of the half reactions to make the number of electrons the same. Then, combine the oxidation and reduction half reaction, canceling out stuff that appears on both sides of the equation. To get rid of the H+ ions, add OH- (hydroxide) ions to both side. Then combine the H+ and OH- to make water, H2O. Finally, subtract out any H2O molecules you can from both sides of the equations. Lastly, do a final check to make sure that everything balances: both atoms and charge.
Views: 804225 Tyler DeWitt

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Views: 22569 Clutch Prep

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Which thing gets oxidized, the oxidizing agent? No wait, that's what gets reduced, or is it the reducing agent? Ahh! Stupid binary concepts! OK, settle down. Watch this clip and learn everything you need to know about electron transfer. Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths Biology Tutorials: http://bit.ly/ProfDaveBio American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Views: 134158 Professor Dave Explains

15:49
We'll learn how to determine the oxidation numbers or oxidation states for a the elements in a chemical compound. The oxidation numbers tell us how electrons are divided up or shared between atoms in a chemical compound. The oxidation numbers also tell us how electrons move in an oxidation reduction (redox) reaction. There are a set a rules that we use to determine oxidation number. Group 1A elements (alkalai metals) always have an oxidation of +1. Group 2A elements (alkaline earth metals) always have an oxidation number of +2. Elements on their own have an oxidation number of 0, and mono atomic ions have an oxidation number that is equal to the ionic charge.