CK-12-Chemistry Intermediate

21.6. References http://www.ck12.org

21.6 References

1. (A) Andrew Comings (Flickr: comingstobrazil); (B) Laura Guerin. (A) http://www.flickr.com/photos/braziln
   ut72/3082913552/; (B) CK-12 Foundation. (A) CC BY 2.0; (B) CC BY-NC 3.0


2. User:Chemicalinterest/Wikimedia Commons. http://commons.wikimedia.org/wiki/File:Litmus_paper.JPG.
   Public Domain


3. Ben Mills (User:Benjah-bmm27/Wikimedia Commons). http://commons.wikimedia.org/wiki/File:Acetic-ac
   id-2D-flat.png. Public Domain


4. Richard A. J. Wain, MBChB, MRCS and Syed H. A. Shah, MBBS, FRCSI. http://www.ncbi.nlm.nih.gov/
   pmc/articles/PMC2905239/figure/F2/. CC BY 1.0


5. Zachary Wilson. CK-12 Foundation. CC BY-NC 3.0


6. Hana Zavadska and Zachary Wilson. CK-12 Foundation. CC BY-NC 3.0


7. Joy Sheng. CK-12 Foundation. CC BY-NC 3.0


8. User:Datamax/Wikimedia Commons. http://commons.wikimedia.org/wiki/File:PH_Meter.jpg. Public Do-
   main


9. User:Midnightcomm/Wikimedia Commons. http://commons.wikimedia.org/wiki/File:Antacid-L478.jpg. CC
   BY 2.5


10. Ben Mills (User:Benjah-bmm27/Wikimedia Commons). http://commons.wikimedia.org/wiki/File:Phenolpht
    halein-at-pH-9.jpg. Public Domain


11. Zachary Wilson. CK-12 Foundation. CC BY-NC 3.0


12. Joy Sheng, using data from http://en.wikipedia.org/wiki/PH_indicator. CK-12 Foundation. CC BY-NC 3.0


13. User:Bordercolliez/Wikimedia Commons. http://commons.wikimedia.org/wiki/File:Universal_indicator_paper
    .jpg. Public Domain


14. Flickr:brittgow. http://www.flickr.com/photos/brittgow/4782591644/. CC BY 2.0