The sulfide ion has a charge of –2.
1 Mn: 1 S → to cancel out the charges
positive ion: Mn2+
2 Fe: 3 S → to cancel out the charges
positive ion: Fe3+
For the following ionic compounds formed with S2−, what is the empirical formula for the positive ion involved?
(a) MnS, (b) Fe2S3 , (c) MoS2 , (d) K2S, (e) Ag2S
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