Aluminum is more reactive than iron is, but iron corrodes more ...

[FButt]

Aluminum is more reactive than iron is, but iron corrodes more quickly. This occurs because
 
  A) aluminum is reduced in the presence of oxygen while iron is oxidized.
  B) aluminum develops a coating of aluminum oxide, which protects it from further reaction.
  C) iron is exposed to both oxygen and water, while aluminum is rarely exposed to water.
  D) iron has a lower density than aluminum does.

Question 2

In the production of iron, coke is used. Coke is
 
  A) previously heated limestone.
  B) previously heated coal.
  C) black water formed from mixing coal and water.
  D) a mineral containing a variety of metals.

[Kedrick2014]

Answer to Question 1

B

Answer to Question 2

B

[FButt]

Thanks for the timely response, appreciate it

[kilada]

Great answer, keep it coming