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2. CK-12 Foundation - Wikipedia

   en.wikipedia.org/wiki/CK-12_Foundation

   The CK-12 Foundation is a California-based non-profit organization which aims to increase access to low-cost K-12 education in the United States and abroad. [2] CK-12 provides free and customizable K-12 open educational resources aligned to state curriculum standards. As of 2022, the foundation's tools were used by over 200,000,000 students ...

3. Christopher Kelk Ingold - Wikipedia

   en.wikipedia.org/wiki/Christopher_Kelk_Ingold

   Sir Christopher Kelk Ingold BEM FRS (28 October 1893 – 8 December 1970) was a British chemist based in Leeds and London. His groundbreaking work in the 1920s and 1930s on reaction mechanisms and the electronic structure of organic compounds was responsible for the introduction into mainstream chemistry of concepts such as nucleophile, electrophile, inductive and resonance effects, and such ...

4. Textbook - Wikipedia

   en.wikipedia.org/wiki/Textbook

   Textbook. A textbook is a book containing a comprehensive compilation of content in a branch of study with the intention of explaining it. Textbooks are produced to meet the needs of educators, usually at educational institutions. Schoolbooks are textbooks and other books used in schools.

5. CK-12 - Wikipedia

   en.wikipedia.org/?title=CK-12&redirect=no

   Language links are at the top of the page. Search. Search

6. K. C. Nicolaou - Wikipedia

   en.wikipedia.org/wiki/K._C._Nicolaou

   Kyriacos Costa Nicolaou ( Greek: Κυριάκος Κ. Νικολάου; born July 5, 1946) is a Cypriot-American chemist known for his research in the area of natural products total synthesis. He is currently Harry C. and Olga K. Wiess Professor of Chemistry at Rice University, having previously held academic positions at The Scripps Research ...

7. Kelly Clarkson - Wikipedia

   en.wikipedia.org/wiki/Kelly_Clarkson

   Kelly Clarkson (born Kelly Brianne Clarkson, April 24, 1982; Kelly Brianne in private [4]) [a] is an American singer, songwriter, and television personality. She rose to fame after winning the first season of American Idol in 2002, which earned her a record deal with RCA Records.