Fe+ CuCl2=
Cu+ FeCl2




                 t
P + O2
=  P2O5




 
Mg +HCl=
MgCl2 + H2↑




 
Al2O3+
HCl =AlCl3+ H2O




 
P2O5+
3H2O = H3PO4




Ba(OH)2 +HNO3=
                  Ba(NO3)2
+H2O




 
Ca +H2O
=Ca(OH)2 + H2↑




 
AgNO3+
KCl = KNO3+ AgCl↓




                 t
Fe(OH)3=
Fe2O3 +H2O

уверен?

2fe? разве не так?

Fe+ CuCl2=Cu+ FeCl24P + 5O2= 2P2O5Mg +2HCl=MgCl2 + H2↑Al2O3+6HCl =2AlCl3+ 3H2OP2O5+3H2O = 2H3PO4Ba(OH)2 +2HNO3=Ba(NO3)2+2H2OCa +H2O=Ca(OH)2 + H2↑AgNO3+KCl = KNO3+ AgCl↓2Fe(OH)3=Fe2O3 +3H2O