7. "Hydrogen Bonding." - Chemwiki. N.p., n.d. Web. 04 Oct. 2014. <http://chemwiki.ucdavis.edu/Physical_Chemistry/Quantum_Mechanics/Atomic_Theory/Intermolecular_Forces/Hydrogen_Bonding>.
8. "Chemical Bond." ScienceDaily. ScienceDaily, n.d. Web. 02 Oct. 2014. <http://www.sciencedaily.com/articles/c/chemical_bond.htm>.
9. "Visionlearning.com." Visionlearning. N.p., n.d. Web. 05 Oct. 2014. <http://www.visionlearning.com/en/library/Chemistry/1/Chemical-Bonding/55>.
All of the images come from those pages except for these two:
http://whatanart.com/2013/06/24/fun-chemistry-inspired-art/chemical-bonds-ionic-t-shirt-design/
and
http://whatanart.com/2013/06/24/fun-chemistry-inspired-art/chemical-bonds-covalent-t-shirt-design/
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