Question

Iron reacts with atmospheric oxygen to form iron oxide or ferric oxide. Look at the chemical equation for this reaction: Fe + O2 → Fe2O3 This equation is unbalanced. Which of the following is the correct balanced equation for this reaction? A. 4Fe + 3O2 → 2Fe2O3 B. 3Fe + 4O2 → 2Fe2O3 C. 2Fe + 4O2 → 3Fe2O3 D. 3Fe + 3O2 → 4Fe2O3 E. 4Fe + 4O2 → 3Fe2O3

Answer 1

Answer:

A

Explanation:

When iron reacts with atmospheric oxygen, it leads to the formation of a new compound called iron oxide or Ferric oxide which is commonly known as rust. The balanced equation for this reaction is:

4Fe+ 3O2 = 2Fe2O3

A balanced equation has an equal number of the atom in both reactants as well as on the product side. When we examine the above-given equation we may find that: