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foxylinok
@foxylinok
July 2022
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1-1
2-2
3-3
4-2
5-1
B1 (А-2, Б-3, В- 5, Г-1)
В2 (А-1, Б-2,3, В-2,3,4, Г-1,2)
С1
H₂S = H₂ + S
S + Fe = FeS
4FeS + 7O₂ = 4SO₂ +2 Fe₂O₃
2SO₂ + O₂ = 2SO₃
SO₃ + NaOH = NaHSO₄
C2
+4 0 +6-2
2SO₂ + O₂ = 2SO₃
S⁺⁴ - 2e = S⁺⁶ |2| восстановитель
O₂° +4e = 2O⁻²|1|окислитель
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foxylinok
Господи,спасибо.Вы прелесть!
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Answers & Comments
Verified answer
1-12-2
3-3
4-2
5-1
B1 (А-2, Б-3, В- 5, Г-1)
В2 (А-1, Б-2,3, В-2,3,4, Г-1,2)
С1
H₂S = H₂ + S
S + Fe = FeS
4FeS + 7O₂ = 4SO₂ +2 Fe₂O₃
2SO₂ + O₂ = 2SO₃
SO₃ + NaOH = NaHSO₄
C2
+4 0 +6-2
2SO₂ + O₂ = 2SO₃
S⁺⁴ - 2e = S⁺⁶ |2| восстановитель
O₂° +4e = 2O⁻²|1|окислитель