Use the chemical reaction to answer the 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.
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.