Shinhye Lee Chem101 4.16 Specify what ions are present upon dissolving each of the following substances in water: a) MgI2(aq) -> Mg 2+ (aq) +2OH-(aq) b) Al(NO3)3(aq) -> Al3+(aq)+3NO3- (aq) c) HCLO4(aq) -> H+ (aq) + ClO4- (aq) d) NaCH3COO(aq) ->Na + (aq) + CH3COO-(aq) 4.22) In each reaction‚ the precipitate is in bold type. a) Ni(NO3)2 (aq) +2NaOH (aq) ->+2NaNO3(aq) + NiOH2 (s) b )No precipate‚ therefore‚ no reaction. c) Na2S(aq) + CuCH3COO (aq) -> CuS(s) + 2NaCH3COO
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chemical reaction by their symbols or formulas. Reversible reaction- a chemical reaction in which the products re-form the original Synthesis reaction- a composition‚ reaction‚ 2 or more substances combine to form a new compound Electrolysis- the decomposition of a substance by an electric current Double displacement reactions- the ions of 2 compounds exchange places in an aqueous solution to form 2 compounds Combustion reaction- a substance combines with oxygen‚ releasing a large amount of energy
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gfhjfh Ball Game project Documentation Report |Filename: |Ball Game project.doc | |Status: |draft | |Date: |8.11.2006 | |Author: |David Hill | Table of contents Ball Game project: Project Model 3 Ball game behaviour-Design: Sequence Diagram 4 Ball Game requirements: Use Case Diagram 8 Ball Game structure
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Date Performed: November 26‚ 2010 Experiment No. 2 – Coupled Reactions R.S. Velasco Institute of Chemistry‚ College of Science University of the Philippines‚ Diliman Quezon City‚ Philippines Received Dec. 1‚ 2010 ------------------------------------------------- ------------------------------------------------- ABSTRACT The reaction of carbon dioxide gas to form carbon monoxide and oxygen gas is non-spontaneous (∆G > 0)‚ thus we coupled it with the reaction that has a free
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I. Objective The first objective of the measurement of thermal conductivity & one-dimensional heat conduction experiment was to identify three different metal specimens by comparing their experimentally determined thermal conductivities to known thermal conductivity values of existing metals. The second objective of the experiment was to establish a connection between the thermal conductivities & temperatures of the metal specimens. Thirdly‚ the contact resistance of the interfaces between
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Lanthanides and Actinides The lanthanides and the actinides make up the f block of the periodic table. The lanthanides are the elements produced as the 4f sub level is filled with electrons and the actinides are formed while filling the 5f sub level Some significant similarities and differences between lanthanides and actinides are observed. The two rows that are generally placed underneath the main periodic table are called the lanthanides series and the actinides series. These two rows are produced
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imaginative world or lifestyle. Explosions are seen in different forms in movies to either depict a car engine steaming and then exploding to a house instantly exploding. The chemistry concept found within explosions are reactions such as decomposition‚ thermal decomposition and the combustion reaction. Coloured flames are seen in movies to represent something magical that is occurring such as a ritual. This is due to the vibrant colours used which communicate a sense of unusual yet visual appearance. chemistry
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Diploma Programme Chemistry data booklet First examinations 2009 Diploma Programme Chemistry data booklet First published March 2007 Revised edition published September 2008 International Baccalaureate Peterson House‚ Malthouse Avenue‚ Cardiff Gate Cardiff‚ Wales GB CF23 8GL United Kingdom Phone: +44 29 2054 7777 Fax: +44 29 2054 7778 Website: http://www.ibo.org © International Baccalaureate Organization 2008 The International Baccalaureate (IB) offers three high quality and
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GAS DYNAMICS AND JET PROPULSION 1. What is the basic difference between compressible and incompressible fluid flow? Compressible 1. Fluid velocities are appreciable compared with the velocity of sound 2. Density is not constant 3. Compressibility factor is greater than one. 2. Write the steady flow energy equation for an adiabatic flow of air. In an adiabatic flow q = 0. Therefore energy equation becomes. 2 c12 c2 h1 + + gZ1 = h2 + + gZ 2 + Ws 2 2 Incompressible 1. Fluid velocities are small
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titration is a titration technique where the endpoints of the reaction are located from the enthalpy change between the reagents. In thermometric titration we make use of the fact that reactions in solution are accompanied by temperature changes and thus it is possible to follow the course of the reaction with a thermometer. A reagent of known concentration is added to the reagent of unknown concentration and the enthalpy changes presented on a graph to show the endpoint and maximum and minimum temperatures
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