1.1 What is Chemistry?

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

19.4 References

1. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


2. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


3. Peter Lai. CK-12 Foundation. CC BY-NC 3.0


4. User:SameerKhan/Wikimedia Commons. http://commons.wikimedia.org/wiki/File:Harbor_Fwy_Traffic.jpg
   . Public Domain


5. User:Sadi_Carnot/Wikipedia. http://commons.wikimedia.org/wiki/File:Molecular-collisions.jpg. Public Do-
   main


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


7. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


8. Michael Schmid. http://commons.wikimedia.org/wiki/File:Hydrogenation_on_catalyst.png. CC BY 1.0


9. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0