a)formule produsilor de reactie
H2O MgO CaO K2O Al2O3 Li2O ZnO
H2S MgS CaS K2S Al2S3 Li2S ZnS
HCl MgCl2 CaCl2 KCl AlCl3 LiCl ZnCl2
HF MgF2 CaF KF AlF3 LiF ZnF2
b)ecuatiile reactiilor
H2+O2=H2O Mg+O2=MgO Ca+O2=CaO K+O2=K2O
H2+S=H2S Mg+S=MgS Ca+S=CaS K+S=K2S
H2+Cl2=2HCl Mg+Cl2=MgCl2 Ca+Cl2=CaCl2 K+Cl2=KCl
H2+F2=2HF Mg+F=MgF Ca+F=CaF2 K+F=KF
2Al+3O2=Al2O3 Li+O2=Li2O Zn+O2=ZnO
2Al+3S=A2S3 Li+S=Li2S Zn+S=ZnS
Al+Cl2=AlCl3 Li+Cl2=LiCl Zn+Cl2=ZnCl2
Al+F=AlF3 Li+F=LiF Zn+F=ZnF2
