Use the chemical reaction to answer the question.

Question

4Fe + 3O↓(2) -> 2Fe↓(2) O↓(3)

What happens to atoms of Fe and O↓(2) during the reation?
They gain mass.
They maintain their properties.
They are lost.
They are rearranged.

Answer 1

They are rearranged. During the reaction, the atoms of Fe and O(2) are rearranged to form iron oxide (Fe2O3).