SO2
raport atomic ----->S:2O=1:2
raport de masa--->AS:2AO=32:2.16=32:32=1:1
MgSO4
r.a.-----> Mg:S :4O=1:1:4
r.m.------->AMg:AS:4AO=24:32:4.16=24:32:64=3:4:8 (se simplifica prin 8
HNO3
r.a.------>H:N:3O=1:1:3
r.m.------>AH:AN:3.AO=1:14:3.16=1:14:48
P2O5
r.a.--->2P:5O=2:5
r.m.----->2AP :5AO=2.31:5.16=62:80=31:40 se simplifica prin 2
Mg(OH)2
r.a.----->Mg:2O:2H=1:2:2
r.m.------->AMg:2AO:2AH=24:2.16:2=24:32:2=12:16:1 se simpl.cu 2
