Закончить реакций ba+HCL=
Al+Hcl=
Mg+HCL=
Na+HCL=
Cuo+h2=
Wo3+h2=
Ag2o+h2=
V2o5+h2=
Mg+h2=
Na+H2=
Ca+h2=
k+h2=

Ba + 2 HCl = BaCl2 + H22Al + 6HCl = 2AlCl3 + 3H2Mg+2HCl=MgCl2+H22Na+2HCl=2NaCl+H2CuO + H2 =Cu + H2O WO3+3H2=W+3H2O2Ag2O + H2 = 4Ag + 2H2OV2O5 + 5H2=2V+5H2OMg + H2 = MgH22Na+H2= 2NaHСa+H2=СaH22K + H2 = 2KH

Решение в фото.......))..