1)H2+Br2=2HBr
2)2HBr+ CaO=CaBr2 + Н 2О
3)CaBr2+2 AgNO3=Ca(NO3)2 +2Ag
H2+Cl2 =2HCL
2HCL+ MgO=MgCL2 + H2O
MgCL2 +2 AgNO3=AgCL +Mg(NO3)2
1)H2+Br2=2HBr
2)2HBr+ CaO=CaBr2 + Н 2О
3)CaBr2+2 AgNO3=Ca(NO3)2 +2Ag
H2+Cl2 =2HCL
2HCL+ MgO=MgCL2 + H2O
MgCL2 +2 AgNO3=AgCL +Mg(NO3)2