Question

fe3O4 + HCl --> FeCl3 + FeCl2 + H2O

HNO3 + Fe --> Fe(NO3)2 + H2

N2 + H2 --> NH3

Answer 1

Fe3O4+ 8 HCI = 2 FeCl3 + FeCl2 + 4 H2O

2HN03 + Fe = Fe(N03)2 + H2

N2 + 3H2 = 2 NH3