Ответ:
4)1
5) 1. H2S + 2 KOH = K2S + 2 H2O
2. K2S + CuCl2 = CuS + 2 KCl
3. 2 CuS + 3 O2 = 2 CuO + 2 SO2
4. SO2 + 2 KOH = K2SO3 + H2O
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Answers & Comments
Ответ:
4)1
5) 1. H2S + 2 KOH = K2S + 2 H2O
2. K2S + CuCl2 = CuS + 2 KCl
3. 2 CuS + 3 O2 = 2 CuO + 2 SO2
4. SO2 + 2 KOH = K2SO3 + H2O