Let I know the equation with symbol of 'iron2oxide from iron fillings'

FeO is iron(II)oxide. You get it by heating Fe in air (O2)

In my study,I found equation in my book.It is

Fe+C2O4H2=>C2O4Fe +H2
C2O4Fe=>FeO +CO+CO2
I do not understand that.That's right or not.

In your book the reaction between iron and oxalic acid to produce iron(II) oxalate. Then they go through a decomposition of iron(II) oxalate to form iron(II) oxide. This is a two-step synthesis. Bob Pursley gave you the direct one-step process which is far easier to do.

Thanks both.😊😊☺☺

The chemical equation for the formation of iron(II) oxide from iron fillings is:

2 Fe + O2 -> 2 FeO

To derive this equation, we need to consider the reaction between iron (Fe) and oxygen (O2). Iron fillings contain pure iron, which reacts with oxygen in the air to form iron(II) oxide, often referred to as ferrous oxide or simply FeO.

In this reaction, two iron atoms (2 Fe) combine with one oxygen molecule (O2) to produce two molecules of iron(II) oxide (2 FeO). The subscript "II" in Fe indicates the oxidation state of iron in this compound.

It's important to note that this equation represents a simplified version of the reaction, assuming ideal conditions. In reality, the reaction may involve more complex steps and may require additional reactants or catalysts.