Question

cuo>cu(oh)2>h2o>fe(oh)2-feo-fe

Answer 1

СuO + H₂O = Cu(OH)₂
Cu(OH)₂ + 2HCl = CuCl₂ + 2H₂O
FeO + H₂O = Fe(OH)₂
Fe(OH)₂ = FeO + H₂O (при t°)
FeO + CO = Fe + CO₂