NaCl->Na->NaOH->Na2SO4->NaCl->NaNo3->NaNo2 помогите плиз
2NaCl = 2Na + Cl2 2Na + 2H2O = 2NaOH + H2 2NaOH + H2SO4 = Na2SO4 + 2H2O Na2SO4 + BaCl2 = 2NaCl + BaSO4 NaCl + AgNO3 = NaNO3 + AgCl 2NaNO3 (t)= 2NaNO2 + O2