Question

CuSO4 → Cu→ CuCl2→ Сu(OH)2→ CuO

Answer 1

сuso4+h2o=cu+h2so4

cu+2hcl=cuhl2+h2

cucl2+h2o=cu(oh)2+2hcl

cu(oh)2+h2o=cuo+h20