Ответы на вопрос:
Na₂so₃ + 2hno₃(конц) = na₂so₄ + 2no₂ + h₂o h₃po₄ + 3koh= k₃po₄ + 3h₂o fe + 2hcl= fecl₂ + h₂ zn(oh)2 + bao= bazno₂ + h₂o fe2o3 + 6hcl= 2fecl₃ + 3h₂o cu+hcl ≠ 2cu(oh)₂ +co₂= (сuoh)₂co₃ + h₂o 2hcl + na₂co3= 2nacl + co₂ cuso4 > cu(oh)2 > cuo --> cucl2 cuso₄ + 2koh > cu(oh)₂ + k₂so₄ cu(oh)₂ = cuo + h₂o cuo + 2hcl = cucl₂ + h₂o fe2o3 > fe2(so4)3 > fe(oh)3 > fecl3 fe₂o₃ + 3h₂so₄ = fe₂(so₄)₃ + 3h₂o fe₂(so₄)₃ + 6koh = 2fe(oh)₃ + 3k₂so₄ fe(oh)₃ + 3kcl = fecl₃ + 3koh
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