АП
Анатолий Прокофьев
Как решить ??Br2+?=NaBrBr2+?=x1X1+?=NaBrX1+?=hclNa+?=naclHcl+?=NaCl
=NaBr
Br2+?=x1
X1+?=NaBr
X1+?=hcl
Na+?=nacl
Hcl+?=NaCl
=NaBr
Br2+?=x1
X1+?=NaBr
X1+?=hcl
Na+?=nacl
Hcl+?=NaCl
Br2+H2=2HBr
2HBr+2Na=2NaBr+H2
2HBr+Cl2=2HCl+Br2
2Na+2HCl=2NaCl+H2
HCl+NaOH=H2O+NaCl