What is the compound name of Fe2O?

Answer 1

This mean hydrogen oxogen and water is mixed!

Not possible, Fe has two possible charges. Fe2+ or Fe3+

Oxygen has one possible charge. O2-

If it was (Fe2+)2O2-, then it would have a remaining charge of 2+. To become an ionic compound and electrically neutral.

it must be Fe2+O2-, Ferrous Oxide (Old term) or Iron (II) Oxide

Answer 2

ferric oxide or rust.

Not Possible. It must be Fe2+O2- to be an ionic compound and be electrically neutral.

This ionic compound would be called Ferrous Oxide (Old term), or Iron (II) Oxide.

Answer 3

The compound name of Fe2O is iron(II) oxide.