Sunday, 31 March 2019
Thursday, 28 March 2019
Sunday, 24 March 2019
Education sites
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https://youtu.be/KK2aXtjdLYg
(Chemcore Academy)
*_SOME USEFUL WEBSITES ONLINE EDUCATIONAL SUPPORT_*
https://youtu.be/KK2aXtjdLYg (Chemcore Academy)
www.khanacademy.org
www.academicearths.org
www.coursera.com
www.edx.org
www.open2study.com
www.academicjournals.org
codeacademy.org
youtube.com/education
*BOOK SITES*
www.bookboon.com
http://ebookee.org
http://sharebookfree.com
http://m.freebooks.com
www.obooko.com
www.manybooks.net
www.epubbud.com
www.bookyards.com
www.getfreeebooks.com
http://freecomputerbooks.com
www.essays.se
www.sparknotes.com
www.pink.monkey.com
*ONLINE EDUCATIONAL SUPPORT*
http://www.ocwconsortium.org/
http://www.ocwconsortium.org/en/courses/ocwsites
http://ocw.tufts.edu -Tuft University
http://ocw.upm.es -Univesidad Politechnica, Madrid
http://www.open.edu/openlearn/
http://ocw.usu.edu/ -Utah State University
http://open.umich.edu/ -University of Michigan
http://ocw.nd.edu/ -Nore Dame University
*ANSWERS TO QUESTIONS*
www.ehow.com
www.whatis.com
www.howstuffwork.com
www.webopedia.com
www.plagtracker.com
www.answers.com
*SEARCH SITES*
■ About.com (www.about.com)
■ AllTheWeb (www.alltheweb.com)
■ AltaVista (www.altavista.com)
■ Ask Jeeves! (www.askjeeves.com)
■ Excite (www.excite.com)
■ HotBot (www.hotbot.com)
■ LookSmart (www.looksmart.com)
■ Lycos (www.lycos.com)
■ Open Directory (www.dmoz.org)
■ Google (www.google.com)
■ Mamma (www.mamma.com)
■ Webcrawler (www.webcrawler.com)
■ Aol (www.aol.com)
■ Dogpile (www.dogpile.com)
■ 10pht (www.10pht.com)
*SEARCHING FOR PEOPLE*
■ AnyWho (www.anywho.com)
■ InfoSpace (www.infospace.com)
■ Switchboard (www.switchboard.com)
■ WhitePages.com (www.whitepages.com)
■ WhoWhere (www.whowhere.lycos.com)
*SEARCHING FOR THE LATEST NEWS*
■ ABC News (www.abcnews.com)
■ CBS News (www.cbsnews.com)
■ CNN (www.cnn.com)
■ Fox News (www.foxnews.com)
■ MSNBC (www.msnbc.com)
■ New York Times (www.nytimes.com)
■ USA Today (www.usatoday.com)
*SEARCHING FOR SPORTS HEADLINES AND SCORES*
■ CBS SportsLine (www.sportsline.com)
■ CNN/Sports Illustrated (sportsillustrated.cnn.com)
■ ESPN.com (espn.go.com)
■ FOXSports (foxsports.lycos.com)
■ NBC Sports (www.nbcsports.com)
■ The Sporting News (www.sportingnews.com)
*SEARCHING FOR MEDICAL INFORMATION*
■ healthAtoZ.com (www.healthatoz.com)
■ kidsDoctor (www.kidsdoctor.com)
■ MedExplorer (www.medexplorer.com)
■ MedicineNet (www.medicinenet.com)
■ National Library of Medicine
(www.nlm.nih.gov)
■ Planet Wellness (www.planetwellness.com)
■ WebMD Health (my.webmd.com)
*JOURNALS*
http://www.indexcopernicus.com Multidisciplinary
http://www.ajol.info/ - African Journal Online
www.africanjournalseries.com -
www.devconsortservices.com.ng
www.doaj.org - directory of open access journal
www.sabinet.co.za - South African Journals.
www.oajse.com - Open Access Journal Search Engine
http://www.lub.lu.se/en.html - Lund University
http://www.dovepress.com/ - Free Scientific & Medical Materials
http://www.copernicus.org/ - Access & Publication
ACADEMIC SEARCH/WEB RESEARCH TOOLS/REFERENCE MANAGERS
http://academic.research.microsoft.com - Multidisciplinary
http://www.scirus.com
www.scholar.google.com
http://dbis.uni-trier.de/DBL-Browser/ - Digital Bibliography Library Browser
http://academic.live.com - Live Search Academic
http://www.science.gov/ - USA government for Science
http://citeseerx.ist.psu.edu/index - Computing & Information Sciences
http://www.mendeley.com/ - academic social network/collaboration
http://www.worldcat.org/ - Multidisciplinary
http://libserver.cedefop.europa.eu - Voc & Tech Education
http://inspirehep.net/ - Stanford physics information retrieval system
Friday, 22 March 2019
Thursday, 21 March 2019
Monday, 18 March 2019
Thursday, 14 March 2019
Wednesday, 13 March 2019
Monday, 11 March 2019
why NiCl4 is tetrahedral but PtCl4 is square planar? co-ordination chemistry
- The
4d orbitals ofPd2+ are more radially diffuse (i.e. bigger) and therefore form stronger overlap with the orbitals onCl− , as compared to the3d orbitals ofNi2+ . This leads to larger splitting of thed orbitals - or the relevant MOs (I'm too lazy to check their symmetry labels) - and hence a largerΔE . - Again because the
d orbitals are more diffuse, the pairing energyP is smaller in the palladium complex (it basically costs less energy to stuff them into the same orbital).
ANCIENT SCIENCE
https://www.youtube.com/watch?v=1eetRjqkUkQ&list=PLuR244LTfD1Dlu2JBzy6yKTCU1DBJv6oy&index=5 https://youtu.be/1eetRjqkUkQ
-
In inorganic chemistry and especially in binary compounds they have the habit to use an order based on electronegativity: the least ...
-
https://drive.google.com/file/d/0B0j8xA2-VWfobnVCcVpuM2gtRW1QY1RfaEdudnBIRE1xVlV3/view https://drive.google.com/file/d/0B0j8xA2-VWfobnVC...