For the following ionic compounds formed with S2-, what is the symbol for the positive ion involved?
a) MnS, b) Fe2S3, c) MoS2, d) K2S, e) Ag2S

Here, x is oxidation state of atoms or positive charge on ions and all species are neutral so net charge is taken zero in every case.
For the following ionic compounds formed with S2-, what is the symbol for the positive ion...