Question

What happens during rusting of an iron nail? (1 point)
• Iron and sulfur combine to form iron sulfide.
• Sulfur and oxygen combine to form a sulfur dioxide coating.
• Sulfur, iron, and oxygen combine to form iron sulfoxide.
• Iron and oxygen combine to form iron oxide.

Answer 1

During the rusting of an iron nail, **iron and oxygen combine to form iron oxide**. So, the correct statement is: **Iron and oxygen combine to form iron oxide.**