Question

Given the incomplete equation:
4Fe + 3O2 ==> 2X
Which compound is represented by X?
(1) FeO (3) Fe3O2
(2) Fe2O3 (4) Fe3O4

Answer 1

X represents the compound Fe2O3

Answer 2

The compound formed must possess all the above atoms, the samw amound, therefore: 2X=4Fe+6O; x=2Fe+3O; x=Fe2O3; Number two. If you notice any mistake in my english, please let me know, because i am not native.