Select the formula for the sulfur compound in which it exhibits an oxidation state of -2.

Sulfur, in fact, exhibit the lowest oxidation state equal to -2.

1) In compounds with metals, for example, Na2S, sodium sulfide or MnS – manganese sulfide.

2) When combined with hydrogen, H2S, it is hydrogen sulfide.

That is, sulfur can interact with metals and non-metals, exhibiting this oxidation state.



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