→fecl3 → fe(oh)3 → fe2o3 → fe → fecl2 → fe(oh)2 - вопрос №588815933232222 от ybitedent 18.10.2020 23:11

Question

Химия: →fecl3 → fe(oh)3 → fe2o3 → fe → fecl2 → fe(oh)2 → feo → fe; na → na2o2 → na2o → naoh → na2co3 → nahco3 → nano3 → nanо2; si → sio2 → na2sio3 → h2sio3 → sio2 → si → mg2si → sih4.

ybitedent · Answer

FeCl₃ + 3NaOH = Fe(OH)₃ + 3NaCl2Fe(OH)₂ = Fe₂O₃ + H₂OFe₂O₃ + 3H₂ = 2Fe + 3H₂OFe + 2HCl = FeCl₂ + H₂FeCl₂ + 2NaOH = Fe(OH)₂ + 2NaClFe(OH)₂ = FeO + H₂OFeO + H₂ = Fe + H₂O2Na + O₂ = Na₂O₂Na₂O₂ + 2Na = 2Na₂ONa₂O + H₂O = 2NaOH2NaOH + H₂CO₃ = Na₂CO₃ + 2H₂ONa₂CO₃ + CO₂ + H₂O = 2NaHCO₃NaHCO₃ + HNO₃ = NaNO₃ + CO₂ + H₂O2NaNO₃ = 2NaNO₂ + O₂Si + O₂ = SiO₂SiO₂ + 2NaOH = Na₂SiO₃ + H₂ONa₂SiO₃ + 2HCl = 2NaCl + H₂SiO₃H₂SiO₃ = SiO₂ + H₂OSiO₂ + 2Mg = Si + 2MgOSi + 4Mg = Mg₂Si + 2MgOMg₂Si + 4H₂O = 2Mg(OH)₂ + SiH₄...