Подскажите пожалуйста
1)Na2O+H2O=2NaOH NaOH+HCl=NaCL+H2O 2NaCl+2H2O=2NaOH+H2+Cl2 2Na+Br2=2NaBr 2NaOH+CuSO4=Na2SO4+Cu(OH)2 Cu(OH)2=CuO+H2O CuO+H2=Cu+H2O 2)2Na+2H2O=2NaOH+H2 2NaOH+H2S=Na2S+2H2O Na2S+2H2O=2NaOH+H2S NaOH+H2S=NaHS+H2O NaHS+H2O=NaOH+H2S