Question

What happens during rusting of an iron nail?(1 point)
Responses

Sulfur, iron, and oxygen combine to form iron sulfoxide.
Sulfur, iron, and oxygen combine to form iron sulfoxide.

Sulfur and oxygen combine to form a sulfur dioxide coating.
Sulfur and oxygen combine to form a sulfur dioxide coating.

Iron and sulfur combine to form iron sulfide.
Iron and sulfur combine to form iron sulfide.

Iron and oxygen combine to form iron oxide.

Answer 1

Iron and oxygen combine to form iron oxide. Rusting is the formation of hydrated iron(III) oxide (Fe2O3·nH2O) from iron in the presence of oxygen and water.