Осуществите превращение: 1) fe-feso4-fe(oh)2-fe(no3)2 2) fecl3-fe(oh)3-fe(no3)3-fe(cns)3 запишите уравнения в молекулярном и ионном видах.
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Ответы на вопрос:
Fe + h₂so₄ = feso₄ + h₂ fe° + 2h⁺ + so₄²⁻ = fe²⁺ + so₄²⁻ + h₂° fe° + 2h⁺ = fe²⁺ + h₂° feso₄ + 2naoh = fe(oh)₂ + na₂so₄ fe²⁺ + so₄²⁻ + 2na⁺ + 2oh⁻ = fe(oh)₂ + 2na⁺ + so₄²⁻ fe²⁺ + 2oh⁻ = fe(oh)₂ fe(oh)₂ + 2hno₃ = fe(no₃)₂ + 2h₂o fe(oh)₂ + 2h⁺ + 2no₃⁻ = fe²⁺ + 2no₃⁻ + 2h₂o fe(oh)₂ + 2h⁺ = fe²⁺ + 2h₂o fecl₃ + 3koh = fe(oh)₃ + 3kcl fe³⁺ + 3cl⁻ + 3k⁺ + 3oh⁻ = fe(oh)₃ + 3k⁺ + 3cl⁻ fe³⁺ + 3oh⁻ = fe(oh)₃ fe(oh)₃ + 3hno₃ = fe(no₃)₃ + 3h₂o fe(oh)₃ + 3h⁺ + 3no₃⁻ = fe³⁺ + 3no₃⁻ + 3h₂o fe(oh)₃ + 3h⁺ + = fe³⁺ + 3h₂o fe(no₃)₃ + kcns = fe(cns)₃ + 3kno₃ fe³⁺ + 3no₃⁻ + 3k⁺ + 3cns⁻ = fe(cns)₃ + 3k⁺ + 3no₃ fe³⁺ + 3cns⁻ = fe(cns)₃
1) fe+h2so4=feso4+h2fe+2h+so4=fe+so4+h22h+fe=fe+h2feso4+2koh=fe(oh)2+k2so4fe+so4+2k+2oh=fe(oh)2+2k+so4fe+2oh=fe(oh)2fe(oh)2+2hno3=fe(no3)2+2h2ofe(oh)2+2h+2no3=fe+2no3+2h2ofe(oh)2+2h=fe+2h2o2)fecl3+3koh=fe(oh)3+3kclfe+3cl+3k+3oh=fe(oh)3+3k+3clfe+3oh=fe(oh)3fe(oh)3+3hno3=fe(no3)3+3h2ofe(oh)3+3h+3no3=fe+3no3+3h2ofe(oh)3+3h=fe+3h2ofe(no3)3+3kcns=fe(cns)3+3kno3fe+3no3+3k+3cns=fe(cns)3+3k+3no3fe+3cns=fe(cns)3
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