Balance the equation in acidic medium
`H_(2)S + Fe^(3+) to Fe^(3+) + S + H^(+)`

Balance the equation , Fe + H_(2)O to Fe_(3)O_(4) + H_(2)

Balance the equations Fe + O2→ Fe2O3

Balance the equation by lon-electron method Cr_(2)O_(7)^(2-) + Fe^(2+) to Fe^(3+) +Cr^(3+) (In acidic medium)

Balance the equation by ion-electron method : MnO_(4)^(-) + Fe^(2+) to Mn^(2+) + Fe^(3+) + H_(2)O (in acid medium)

Balance the following equations by hit and trial method. Fe + H_(2)O to Fe_(3)O_(4) + H_(2)

Balance the following equations Fe + H_2O to Fe_3O_4 + H_2