AA
Andrey Agafonov
Mg + H2 = MgH2
Mg(0) -2e- --> Mg(+2) I 1
H2(0) +2e- --> 2H(-1) I 1
3Mg + N2 = Mg3N2
Mg(0) -2e- --> Mg(+2) I 3
N2(0) +6e- --> 2N(-3) I 1
Mg + 2H2O = Mg(OH)2 + H2
Mg(0) -2e- --> Mg(+2) I 1
2H(+1) +2e- --> H2(0) I 1