Li2O - +1 (Li) и -2 (O)H2S - -2 (S) и +1 (H)HgO - +2 (Hg) и -2 (O)MgCl - +2 (Mg) и -1 (Cl)HO - +1 (H) и -1 (O)
Li2O - +1 (Li) и -2 (O)
H2S - -2 (S) и +1 (H)
HgO - +2 (Hg) и -2 (O)
MgCl - +2 (Mg) и -1 (Cl)
HO - +1 (H) и -1 (O)