1 )Cl2 + H2 ->2HCl ...1+1+2=4
2)4P + 5O2 ->2P2O5...4+5+2=11
3)2Al+3Br2=2AlBr3...2+3+2=7
4)2Fe2O3+3C=3CO2+4Fe...2+3+3+4=12
5)P + 3 Li > Li3P...1+3+1=5
1 )Cl2 + H2 ->2HCl ...1+1+2=4
2)4P + 5O2 ->2P2O5...4+5+2=11
3)2Al+3Br2=2AlBr3...2+3+2=7
4)2Fe2O3+3C=3CO2+4Fe...2+3+3+4=12
5)P + 3 Li > Li3P...1+3+1=5