Объяснение:
Cu(OH)2 + H2S = CuS↓ + 2H2O
CuSO4 + Na2S = CuS↓ + Na2SO4
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Объяснение:
Cu(OH)2 + H2S = CuS↓ + 2H2O
CuSO4 + Na2S = CuS↓ + Na2SO4