HF - H(+1)F(-1)
K2O - K(+1)O(-2)
H2S- H(+1)S(-2)
CuO- Cu(+2)O(-2)
MgCl2 - Mg(+2) Cl(-1)
H2O - H(+1)O(-2)
SO3 - S(+6)O(-2)
LiC - Li(+1)C(-1)
H2SO4 - H(+1)S(+6)O(-2)
KMnO4 - K(+1)Mn(+7)O(-2)
HF - H(+1)F(-1)
K2O - K(+1)O(-2)
H2S- H(+1)S(-2)
CuO- Cu(+2)O(-2)
MgCl2 - Mg(+2) Cl(-1)
H2O - H(+1)O(-2)
SO3 - S(+6)O(-2)
LiC - Li(+1)C(-1)
H2SO4 - H(+1)S(+6)O(-2)
KMnO4 - K(+1)Mn(+7)O(-2)