Use the chemical reaction to answer the question.

Question

4​Fe+3O2→2Fe2O3​

What happens to atoms of Fe and O2 during the reaction?

A. they maintain their properties
B. they are lost
C. they gain mass
D. they are rearranged

Answer 1

The correct answer is D. they are rearranged.

During the chemical reaction, the atoms of iron (Fe) and oxygen (O2) are rearranged to form a different compound, iron(III) oxide (Fe2O3). The individual properties of the Fe and O2 atoms change as they combine in new ways, but the total number of atoms remains the same throughout the reaction.