Question

Aluminium and iron both produce oxides in the air.
a) How does this affect their mass?
b) The mass of iron on which the oxide forms eventually decreases. Why is this?
-) How does dipping an iron bucket in molten zinc protect it?​

Answer 1

Answer:

When iron is exposed to air in the presence of water, for example, the iron turns to rust—an iron oxide. When exposed to air, aluminum metal develops a continuous, transparent layer of aluminum oxide on its surface.