СuS → CuO → CuSO → Cu(OH) → CuBr

Question

СuS → CuO → CuSO → Cu(OH) → CuBr

Answer 1

Cu + S (t) = CuS
2CuS + 3O2 (t) = 2 CuO + 2SO2
CuO + H2SO4 =CuSO4 + H2O
CuSO4 + 2NaOH = Na2SO4 + Cu(OH)2
Cu(OH)2 + HBr = CuBr + H2O 
как то так