Use the chemical reaction to answer the question.
4Fe+3O2→2Fe2O34Fe+3O2→2Fe2O3
What happens to atoms of Fe and O2 during the reaction?
• They are rearranged.
• They gain mass.
• They are lost.
• They maintain their properties.
4Fe+3O2→2Fe2O34Fe+3O2→2Fe2O3
What happens to atoms of Fe and O2 during the reaction?
• They are rearranged.
• They gain mass.
• They are lost.
• They maintain their properties.