Предмет: Химия, автор: Elli

1. Составьте уравнения химических реакций согласно схеме:

Fe →  FeCl2  → Fe(OH)2  →  FeO  → Fe

2 .  По уравнению реакции  H2SO4 + 2NaOH = Na2SO4 + 2H2O

рассчитайте массу гидроксида натрия, необходимого для полной нейтрализации раствора, содержащего24,5 гсерной кислоты.

3. Изобразите схемы электронного строения атомов химических элементов серы и углерода. Запишите формулы соединений, в которых эти атомы проявляют максимальную степень окисления.

Ответы

Автор ответа: yulchik96
0

FeO+2HCl=FeCl2+H2O

FeCl2+2KOH=Fe(OH)2-осадок+KCl

            t

Fe(OH)2=FeO+H2O

остальное незнаю

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