Question

СuSO4--->Сu(OH)2---->СuO---->Сu

Answer 1

  CuSO4 → Cu(OH)2 → CuO → Cu
1. CuSO4 + 2NaOH(разб.) = Cu(OH)2(гель) + Na2SO4
2. Cu(OH)2 = CuO + H2O
3. CuO + H2 = Cu + H2O