Aluminum is resistant to corrosion because
a.aluminum has a large positive standard reduction potential.
b.the surface of aluminum is coated with unreactive AlN.
c.aluminum is a noble metal.
d.the surface of aluminum is coated with unreactive Al2O3.
e.aluminum contains trace amounts of magnesium and chromium.
2007-12-15 04:20:03 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Alumenium reacts with air to form Al2O3 on the surface, which prevents currosion.
d is the answer.
2007-12-15 04:24:45 · answer #1 · answered by DrCoolSanta 2 · 0⤊ 0⤋
Aluminum IS NOT resistant to corrosion. What do you think that powdery white stuff that forms on it is? It may not rust, but it sure does corrode.
2007-12-15 04:24:24 · answer #2 · answered by bikinkawboy 7 · 0⤊ 0⤋
Aluminum oxide (aluminum 'rust') is not air-permiable, so air can not get through to corrode aluminum under this thin grey layer.
2007-12-15 04:28:43 · answer #3 · answered by Edward S 3 · 0⤊ 0⤋
a.aluminum has a large positive standard reduction potential.
2007-12-15 04:24:33 · answer #4 · answered by RM 1 · 0⤊ 0⤋
d
2007-12-15 04:23:34 · answer #5 · answered by ignoramus 7 · 1⤊ 0⤋