Визначити валентність MgCl, SO2,SO3,P2O3,P2O5,CH4,CO,CO2,Pll3,NH3, MgP3, SiO2,FeCl,Fe2O3

Mg(II)Cl(I)

S(IV)O(II)

S(VI)O(II)

P(III)O(II)

P(V)O(II)

C(IV)H(I)

C(II)O(II)

P(III)I(I)

Mg(II)P(III)

Si(IV)O(II)

Fe(II)Cl(I), Fe(III)Cl(I)

Fe(III)O(II)