Preparation
Sulfide compounds can be prepared in several different ways:
1. Direct combination of elements:
Example: Fe(s) + S(s) --> FeS(s)
2. Reduction of a sulfate:
Example: MgSO4(s) + 4C(s) --> MgS(s) + 4CO(g)
3. Precipitation of an insoluble sulfide:
Example: M2+ + H2S(g) --> MS(s) + 2H+(aq)
Read more about this topic: Sulfide
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