Предмет: Химия, автор: AlexandraaB

Схема превращения:

S - H2S - Na2S - FeS - H2S

 

Ответы

Автор ответа: 9KaRiNkA
19

H2 + S = H2S

H2S + 2NaOH(конц.) = Na2S + 2H2O

FeCl2 + Na2S = FeS↓ + 2NaCl

FeS + 2HCl(разб.) = FeCl2 + H2S↑

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