Chapter 2 extras: Chemistry

"Biology is applied chemistry." - Anon.

Supplementary videos
Hydrogen is very reactive: Hindenburg explosion
Hydrogen is very reactive: balloon explosion (HHMI)
Water pulled up a tree due to cohesion
Birds dance on water due to surface tension
Hydrogen fuel cell with PEM technology
Peptic Ulcer: why 'medications to suppress stomach acid'?

Extra credit readings

Copyleft Peter Chen