2Na + 2H2O -> 2NaOH + H22NaOH + CuCl2 -> Cu(OH)2 + 2NaClCu(OH)2 -> CuO + H2OCuO + H2SO4 -> CuSO4 + H2O
2Na + 2H2O -> 2NaOH + H2
2NaOH + CuCl2 -> Cu(OH)2 + 2NaCl
Cu(OH)2 -> CuO + H2O
CuO + H2SO4 -> CuSO4 + H2O