2Na+Br2=2NaBr
Zn+2HCl=ZnCl2+H2
2Na+2H2O=2NaOH+H2
Zn+S=ZnS
Mg+HgCl2=MgCl2+Hg
4Ca+10HNO3=4Ca(NO3)2+N2O+5H2O
2Na+Br2=2NaBr
Zn+2HCl=ZnCl2+H2
2Na+2H2O=2NaOH+H2
Zn+S=ZnS
Mg+HgCl2=MgCl2+Hg
4Ca+10HNO3=4Ca(NO3)2+N2O+5H2O