Question

Iron metal reacts with oxygen gas to form rust, iron (III) oxide. Which of the following correctly shows the balanced equation for this reaction?

Answer 1

4Fe + 3O2 --> 2Fe2O3
iron (III) the roman numerals mean it has a positive charge of 3 and Oxygen gas is a diatomic so it's O2 and a charge of -2. So then you combine them and get Fe2O3 and then you just balance it.

Answer 2

The balanced chemical reaction between iron and oxygen gas is given by :

`4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)`

Step-by-step explanation:

Iron metal reacts with oxygen gas to form rust, iron (III) oxide.

The balanced chemical reaction between iron and oxygen gas is given by :

`4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)`

According to reaction, 4 moles of iron metal reacts with 3 moles of oxygen gas to give 2 moles of iron(III) oxide that is rust.