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denisjed
@denisjed
November 2021
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Осуществите цепочку превращений H2S----SO2 ----- Na2SO3 ---- CaSO3 ---- CaSO4 . Помогите пожалуйста .
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Demetria07
H2S----SO2 ----- Na2SO3 ---- CaSO3 ---- CaSO4
1)
H2S -> H2 + S
2)
2H2S +O2 -> 2SO2 +2H2O
3) SO2
+ 2NaOH -> Na
2SO3
+ H
2
O
4) Na2SO3
+ CaCl
2
-> CaSO
3↓ + 2NaCl
5)
CaSO3 + O2 -> CaSO4 (нужно уравнять)
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Answers & Comments
1) H2S -> H2 + S
2) 2H2S +O2 -> 2SO2 +2H2O
3) SO2 + 2NaOH -> Na2SO3 + H2O
4) Na2SO3 + CaCl2 -> CaSO3↓ + 2NaCl
5) CaSO3 + O2 -> CaSO4 (нужно уравнять)