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YarikOlimpiadnik
@YarikOlimpiadnik
July 2022
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15 БАЛЛОВ! Пожалуйста! На схеме приведены превращения вещества Х. Определить вещество Х, записать уравнения соответствующий реакций.
1) Х + О2 =
2) Х + Br2 =
3) X + KOH =
4) X + SO2 = S + H2O
5) X + CuSO4 =
6) X + KMnO4 =
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Ilya27022002
2 H2S + 2 O2 = 2 H2O + SO2 ↑
H2S + Br2 = 2 HBr ↑ + S ↓
2 KOH + H2S = K2S + 2 H2O
2 H2S + SO2 = 2 H2O + 3 S ↓
CuSO4 + H2S = CuS ↓ + H2SO4
2 KMnO4 + 3 H2S = 2 MnO2 ↓ + 3 S ↓ + 2 H2O + 2 KOH
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Answers & Comments
H2S + Br2 = 2 HBr ↑ + S ↓
2 KOH + H2S = K2S + 2 H2O
2 H2S + SO2 = 2 H2O + 3 S ↓
CuSO4 + H2S = CuS ↓ + H2SO4
2 KMnO4 + 3 H2S = 2 MnO2 ↓ + 3 S ↓ + 2 H2O + 2 KOH