صفحه محصول - پاورپوینت واکنشهای شيميايي در محلولهای آبی

پاورپوینت واکنشهای شيميايي در محلولهای آبی (pptx) 73 اسلاید

دسته بندی : پاورپوینت

نوع فایل : PowerPoint (.pptx) ( قابل ویرایش و آماده پرینت )

تعداد اسلاید: 73 اسلاید

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واکنشهای شيميايي در محلولهای آبی Chemical Reactions The following table summarizes the common Driving forces that tend to make reactions go in the direction of the arrow: Reactants  Products When two or more chemicals are brought together, if any of the above can occur, a chemical reaction is likely to take place! Formation of a solid Formation of water Formation of gas Transfer of electrons CHEMISTRY - science of properties and transformations of matter CHEMICAL REACTIONS - central to CHEMSITRY CLASSIFICATION of REACTIONS Precipitation Oxidation-reduction Acid-base Gas forming Precipitation ReactionsSolubility Rules There are simple guidelines that allow one to predict whether or not a reaction will produce an insoluble compound: these are called the Solubility Rules Ionic Equations:Net Ionic The ions that appear on both sides of the equation in identical forms. These ions are not involved directly in the reaction and are called spectator ions. In the net ionic equation, the spectator ions are omitted leaving only the ions directly involved in the reaction. Pb2+(aq) + 2NO3-(aq) + 2K+(aq) + 2I-(aq)  PbI2 (s) + 2K+(aq) + 2NO3-(aq) spectator ions Pb2+(aq) + 2I-(aq)  PbI2 (s) Ionic Equations:Summary Summary of the 3 different chemical equations: Molecular equation Complete ionic equation Net ionic equation Pb(NO3)2(aq) + 2KI(aq)  PbI2 (s) +2KNO3(aq) Pb2+(aq) + 2NO3-(aq) + 2K+(aq) + 2I-(aq)  PbI2 (s) + 2K+(aq) + 2NO3-(aq) Pb2+(aq) + 2I-(aq)  PbI2 (s) Acid-Base Reactions:Neutralization Consider the reaction between Mg(OH)2 [milk of magnesia] and HCl (stomach acid) The net reaction is: The acid has been neutralized