Question

Fe + C →
Fe + H2S→
Fe + HNO3(розб.) →
Fe + BaCl2 →
Fe + N2 →
Fe + H2O →
Fe + HNO3(конц)→
Fe + H2SO4(конц)→
Fe + H2SO4(розб)→
Fe(OH)2 + H2SO4 =
Fe(OH)3 + H2SO4 =
Fe2O3 + H2 =
FeO + H2 =

Answer 1

3Fe + C -->Fe3C
Fe + 4HNO3(разб., гор.) = Fe(NO3)3 + NO + 2H2O

Answer 2

FeO + H2 = Fe + H2O