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Add new Web site: Western Oregon University - Chemical Reactions. |
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Dec 16, 2024 |
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Add new Web site: State Government of Victoria - Department of Education - Chemical reactions. |
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Oct 28, 2024 |
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Add new Web site: Royal Society of Chemistry - Introducing chemical reactions. |
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May 07, 2024 |
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Add new Web site: Florida State University - Department of Chemistry and Biochemistry - Chemical Reactions. |
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Dec 27, 2023 |
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Add new Web site: University of Hawaii pressbooks - Chemical Reactions. |
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Oct 15, 2023 |
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Add new Web site: BCcampus Open Publishing - Enthalpy and Chemical Reactions. |
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Jun 26, 2023 |
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Add new Web site: Chemistry LibreTexts - Chemical Reactions. |
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Aug 18, 2022 |
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Added a photograph of melting ice. |
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Nov 04, 2020 |
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Corrected display issue. |
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Mar 08, 2019 |
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Add new Web site: CoolKidFacts.com - Chemical Reactions. |
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Feb 26, 2019 |
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Add new Web site: Khan Academy - Chemical reactions. |
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Feb 26, 2019 |
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Top Questions updated. |
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Oct 16, 2018 |
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Corrected display issue. |
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Dec 13, 2017 |
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Add new Web site: Science Learning Hub - Chemical reactions and catalysts. |
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Jan 19, 2017 |
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Changed Avogadro's number from "6.02214179 x 10^23" to "6.022140857 x 10^23." |
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Apr 15, 2016 |
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Add new Web site: British Broadcasting Corporation - Chemical Reactions. |
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Dec 13, 2013 |
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Add new Web site: Purdue University - Chemical Education Division Groups - Organic Reaction. |
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Dec 16, 2011 |
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Illustrations of chemical reactions added. |
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Nov 08, 2011 |
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Add new Web site: NeoK12 - Educational Videos and Games for School Kids - Chemical Reaction. |
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Nov 03, 2011 |
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Add new Web site: ThinkQuest - Chemical Reactions. |
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Sep 13, 2011 |
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Add new Web site: British Broadcasting Corporation - Reactions of Carbon Compounds. |
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Sep 13, 2011 |
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Video illustrating conservation of mass in a chemical reaction added. |
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Jul 19, 2011 |
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Photograph of precipitation of lead(II) iodide added. |
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Apr 07, 2011 |
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Added new Web site: University of Waterloo - Chemical Reaction. |
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Mar 16, 2009 |
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Added new Web site: Boise State University - Chemical Reactions. |
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Mar 16, 2009 |
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Added new Web site: College of Charleston - Types of Chemical Reactions. |
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Mar 16, 2009 |
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Value of Avogadro's number updated. |
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Feb 05, 2009 |
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Article revised and updated. |
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Jul 29, 2008 |
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Bibliography revised and updated. |
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Jul 29, 2008 |
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Added new Web site: Michigan State University - Examples of Organic Reactions. |
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Jun 27, 2008 |
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Added new Web site: Columbia Education Center - Baggy Science. |
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Apr 25, 2007 |
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Added new Web site: Michigan Reach Out - Ice Energy. |
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Apr 25, 2007 |
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Article revised. |
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Jan 12, 2006 |
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Article revised. |
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Feb 26, 2001 |
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Article revised. |
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Oct 05, 2000 |
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Article added to new online database. |
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Aug 23, 1998 |