Aluminum metal undergoes the same basic corrosion process that ...

[mckennatimberlake]

Aluminum metal undergoes the same basic corrosion process that iron does yet it does not decompose as rapidly. Why?
 
  A) The aluminum oxide does not flake off like rust and acts as a protective layer.
  B) Aluminum is harder to oxidize than iron.
  C) Aluminum is harder to reduce than iron.
  D) The aluminum oxide product undergoes a reduction to produce aluminum metal.
  E) The aluminum is galvanized, which prevents oxidation.

Question 2

Treating water with chlorine or ozone during water purification is an example of ________.
 
  A) a physical change
  B) a chemical reaction
  C) ion exchange
  D) a solid dissolving in a liquid
  E) only A and B

[234sdffa]

Answer to Question 1

A

Answer to Question 2

B

[mckennatimberlake]

Excellent

[Jossy]

Gracias!