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andreyishp
@andreyishp
July 2022
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Гидролиз солей. Задние в фото....
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IrVB
Verified answer
1)
Cr³⁺ + H2O = CrOH²⁺ + H⁺
CrCl3 + H2O = CrOHCl2 + HCl
Cr³⁺ + 3Cl⁻ + H2O = CrOH²⁺ + 2Cl⁻ + H⁺ + Cl⁻
Cr³⁺ + H2O = CrOH²⁺ + H⁺
2)
Fe²⁺ + H2O = FeOH⁺ + H⁺
Fe(NO3)2 + H2O = FeOHNO3 + HNO3
Fe²⁺ + 2NO3⁻ + H2O = FeOH⁺ + NO3⁻ + H⁺ + NO3⁻
Fe²⁺ + H2O = FeOH⁺ + H⁺
3)
Al³⁺ + H2O = AlOH²⁺ + H⁺
AlCl3 + H2O = AlOHCl2 + HCl
Al³⁺ + 3Cl⁻ + H2O = AlOH²⁺ + 2Cl⁻ + H⁺ + Cl⁻
Al³⁺ + H2O = AlOH²⁺ + H⁺
4)
Cu²⁺ + H2O = CuOH⁺ + H⁺
CuBr2 + H2O = CuOHBr + HBr
Cu²⁺ + 2Br⁻ + H2O = CuOH⁺ + Br⁻ + H⁺ + Br⁻
Cu²⁺ + H2O = CuOH⁺ + H⁺
Во всех случаях гидролиз идет по катиону, среда в растворе кислая
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Answers & Comments
Verified answer
1) Cr³⁺ + H2O = CrOH²⁺ + H⁺CrCl3 + H2O = CrOHCl2 + HCl
Cr³⁺ + 3Cl⁻ + H2O = CrOH²⁺ + 2Cl⁻ + H⁺ + Cl⁻
Cr³⁺ + H2O = CrOH²⁺ + H⁺
2) Fe²⁺ + H2O = FeOH⁺ + H⁺
Fe(NO3)2 + H2O = FeOHNO3 + HNO3
Fe²⁺ + 2NO3⁻ + H2O = FeOH⁺ + NO3⁻ + H⁺ + NO3⁻
Fe²⁺ + H2O = FeOH⁺ + H⁺
3) Al³⁺ + H2O = AlOH²⁺ + H⁺
AlCl3 + H2O = AlOHCl2 + HCl
Al³⁺ + 3Cl⁻ + H2O = AlOH²⁺ + 2Cl⁻ + H⁺ + Cl⁻
Al³⁺ + H2O = AlOH²⁺ + H⁺
4) Cu²⁺ + H2O = CuOH⁺ + H⁺
CuBr2 + H2O = CuOHBr + HBr
Cu²⁺ + 2Br⁻ + H2O = CuOH⁺ + Br⁻ + H⁺ + Br⁻
Cu²⁺ + H2O = CuOH⁺ + H⁺
Во всех случаях гидролиз идет по катиону, среда в растворе кислая