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Figure 2: Alternative Periodic Table
Figure 2: Alternative Periodic Table

... K4+ -> K5+ + eb) Explain the large jumps in ionization energy between the 9th and the 10th and the 17th and the 18th. The jump between the 9th and 10th represents a change from ionizing n=3 electron to ionizing n=2 electrons. The jump between the 17th and 18th represents a change from ionizing n=2 e ...
Chemistry 116: General Chemistry
Chemistry 116: General Chemistry

... The reaction is faster at higher temperatures. The reaction has only one type of reactant. The rate remains constant when the reactant concentration is doubled. The reaction slows down as time goes on. The half life remains constant as time goes on. ...
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Lecture 2

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Review 3
Review 3

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9.2 Oxidation Numbers
9.2 Oxidation Numbers

... Are these reactions oxidation‑reduction reactions? Are electrons transferred? Simply reading a chemical equation does not always tell us whether oxidation and reduction have occurred, so chemists have developed a numerical system to help identify a reaction as redox. For redox reactions, this system ...
Study of graphite electrode surface with In and Pt deposits E.M.
Study of graphite electrode surface with In and Pt deposits E.M.

... reduction (IV). This leads to the process of platinum ions electroreduction overlapping and the simultaneous oxygen release from water, as it occurs at the potentials which are greater than 1 V. In addition, electro-oxidation of platinum occurs before its oxide [3]. Our research showed [4,5] that de ...
review – electric charge One Coulomb is a HUGE charge electrons
review – electric charge One Coulomb is a HUGE charge electrons

Chemical Reactions (Part One)
Chemical Reactions (Part One)

Chapters 18 – The Periodic Table
Chapters 18 – The Periodic Table

Oxidation of Silicon
Oxidation of Silicon

... typically in the range of 900-1200 degrees C. The atmosphere in the furnace where oxidation takes place can either contain pure oxygen or water vapor. Both of these molecules diffuse easily through the growing SiO2 layer at these high temperatures. Oxygen arriving at the silicon surface can then com ...
Solution - gearju.com
Solution - gearju.com

Learning Guide – Poisons (I)
Learning Guide – Poisons (I)

Electric Potential Energy
Electric Potential Energy

... An application that you may not think about is the potential or the electric field present inside a conducting cavity. If we assume that there is no charge present inside the cavity, the electric field inside the cavity must be zero, regardless of the charge distribution on the outside surface of t ...
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... The dz2 and dx2y2 orbitals lie on the same axes as negative charges. Therefore, there is a large, unfavorable interaction between ligand (-) orbitals. These orbitals form the degenerate high energy pair of energy levels. The dxy , dyx and dxz orbitals bisect the negative charges. Therefore, there is ...
nomenclature review
nomenclature review

... ________ Magnesium chloride is dissolved in water. ________ Hydrochloric acid neutralizes sodium hydroxide to form sodium chloride and water. 13. Why are phase changes considered only physical changes? 14. Sketch an example of the following at the molecular level: a. a gaseous compound b. a mixture ...
Ionic Bonding - cloudfront.net
Ionic Bonding - cloudfront.net

... one molecule of a compound contains. ...
Midterm Review Packet - Mrs. McKenzie`s Chemistry and ICP Classes
Midterm Review Packet - Mrs. McKenzie`s Chemistry and ICP Classes

... 10. In an ionic bond, __________ atoms of ________________ charge are held together by _________________________ attraction. 11. The part of an atom that has a neutral charge is a _______________________. 12. Most of the mass of an atom is found in the _____________________. 13. A pure substance mad ...
Chemical Reactions
Chemical Reactions

... High pressure © Boardworks Ltd 2003 ...
General Equilibrium
General Equilibrium

... If K is very large, that the equilibrium lies far to the right (or towards products). If K is small, the reaction lies towards reactants. For example, the KHP we are using in lab is a monoprotic acid that undergoes the following equilibrium: ...
POTENTIAL GRADIENT & CATHODE RAY TUBE
POTENTIAL GRADIENT & CATHODE RAY TUBE

... proceeding. The accelerating and focusing anodes serve this purpose.  The accelerating anode is located in the third grid; it emits a large positive electromagnetic field which draws and accelerates the electrons through the grids and towards the screen.  The focusing anode also emits a large posi ...
Paper - Edexcel
Paper - Edexcel

... reaction 1 ................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................ .............................................................................................. ...
Pre-Board Examination2016 Class : XII MM: 70 Subject : Chemistry
Pre-Board Examination2016 Class : XII MM: 70 Subject : Chemistry

MIDTERM REVIEW UNIT 1: Mass/Measurement
MIDTERM REVIEW UNIT 1: Mass/Measurement

... a) write  the  formulas  for  the  reactants  and  the  products  and  balance  the  equation   b) If  0.67  moles  of  copper  (II)  bromide  react  with  0.52  grams  of  lead  (II)  nitrate,  how  many   grams  of  lead(II)  bromid ...
Voltage Notes File
Voltage Notes File

Michael Faraday - giftedcrandall
Michael Faraday - giftedcrandall

... fact that a conductor at rest and a steady magnetic field do not interact and that to get an induced current either the conductor or the field has to move. On Aug. 29, 1831, he discovered electromagnetic induction. During the next 10 years Faraday explored and expanded the field of electricity. In 1 ...
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Electrochemistry



Electrochemistry is the branch of physical chemistry that studies chemical reactions which take place at the interface of an electrode, usually a solid metal or a semiconductor, and an ionic conductor, the electrolyte. These reactions involve electric charges moving between the electrodes and the electrolyte (or ionic species in a solution). Thus electrochemistry deals with the interaction between electrical energy and chemical change.When a chemical reaction is caused by an externally supplied current, as in electrolysis, or if an electric current is produced by a spontaneous chemical reaction as in a battery, it is called an electrochemical reaction. Chemical reactions where electrons are transferred directly between molecules and/or atoms are called oxidation-reduction or (redox) reactions. In general, electrochemistry describes the overall reactions when individual redox reactions are separate but connected by an external electric circuit and an intervening electrolyte.
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