Old chemists never die; they just fail to react.
Homework:
Read "Corrosion" p. 412-415 and do p. 416 # 1-6, 9.
Read "Piercing Problems" p. 417-419 and do p. 419 # 1-5.
Read " Preventing Corrosion" p. 422-425 and do p. 425 # 1-8a.
