1.Na2o-naoh-na2so4-nacl 2.cu-cuo-cucl2cu(oh)2

Question

1.Na2o-naoh-na2so4-nacl 2.cu-cuo-cucl2cu(oh)2

Answer 1

Na2O + H2O -> 2NaOH

2NaOH + H2SO4 -> Na2SO4 + 2H2O

Na2SO4 + BaCl2 -> BaSO4 + 2NaCl

2Cu + O2 -> 2CuO

CuO + 2HCl -> CuCl2 + H2O

CuCl2 + 2NaOH -> Cu(OH)2 + 2NaCl