Помоги пожалуйста!!!
HBr +NaOH = NaBr + H2O 2NaBr +Cl2 = 2NaCl +Br2 Br2 +H2 =2HBr
HBr+NaOH=H2O+NaBr 2NaBr=2Na+Br2 Br2+H2=2HBr