Question

use the chemical reaction to answer the question.
4fe + 3o₂ → 2fe₂o₃
what happens to atoms of fe and o₂ during the reaction?
(1 point)
they gain mass.
they are lost.
they are rearranged.
they maintain their properties.

Explanation:

In a chemical reaction, atoms are neither created nor destroyed (Law of Conservation of Mass). They are just rearranged to form new substances. In the reaction \(4Fe + 3O_2
ightarrow2Fe_2O_3\), the iron (\(Fe\)) and oxygen (\(O_2\)) atoms are rearranged to form iron(III) oxide (\(Fe_2O_3\)). Atoms do not gain mass in a chemical reaction (mass is conserved, not gained by atoms in this context). Atoms are not lost (again, Law of Conservation of Mass). And atoms do not maintain their properties as they are part of a new compound with different properties.

Answer:

They are rearranged.