Al2O3 - Al3+Zn(NO3)2 - Zn2+, N5+, O2-MgCl2 - Mg2+, Cl-CaO - Ca2+, O2-HF - H+, F-SO3 - S6+, O2-KOH - K+, O2-, H+KMnO4 - K+, Mn7+, O2-H2SO4 - H+, S6+, O2-
Al2O3 - Al3+
Zn(NO3)2 - Zn2+, N5+, O2-
MgCl2 - Mg2+, Cl-
CaO - Ca2+, O2-
HF - H+, F-
SO3 - S6+, O2-
KOH - K+, O2-, H+
KMnO4 - K+, Mn7+, O2-
H2SO4 - H+, S6+, O2-