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Oxide coating question

  1. Apr 16, 2005 #1
    i'm guessing the answer is d). I am really not sure about that though... Can someone explain to me what the correct answer is suppose to be and why? Thanks.

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  2. jcsd
  3. Apr 16, 2005 #2


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    I'm guessing the aluminum, iron oxide is quite porous.
  4. Apr 16, 2005 #3


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    apchem, these are multiple choice questions, and it doesn't take more than a little Googling to find the correct answer - at least in this case.
  5. Apr 16, 2005 #4
    I suppose i'll try that later... but still lots of stuff to go through for now...
  6. Apr 16, 2005 #5
    Thanks for answering
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