Помогите с решением заданий пожалуйста!

[maybeshewill]

Задание 1. Укажите названия и классы соединений. Напишите
молекулярные и ионные уравнения возможных реакций
с серной кислотой,
с гидроксидом калия
FeO Mn(OH)2 Cd(NO3)2 NaHCO3
Задание 2. Запишите молекулярные и ионные уравнения реакций, соответствующих превращениям
NiSO4→ (NiOH)2SO4→ Ni(OH)2→ NiCl2
Задание 4. Запишите молекулярные и ионные уравнения гидролиза солей.
Укажите pH среды (pH>7, pH<7, pH≈7).
NaBr Na2SO3 NiCl2
Задание 8. Запишите уравнения полуреакций, молекулярное и ионное уравнения реакций, соответствующих превращениям. Укажите окислитель и восстановитель.
Cr2O3+Br2+NaOH→(CrO4)^2-+Br^-

[wigrafzrolok]

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[wigrafzrolok]

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