The introductory passage discusses nitrification, which is the reduction of ammo

Question

The introductory passage discusses nitrification, which is the reduction of ammonia to nitrate. Understanding this process requires understanding oxidation and reduction. Sulfur compounds are also present in multiple chemical states, from highly oxidized to highly reduced. Place the sulfur compounds in the list below in the correct order from most oxidized to most reduced.

sulfate (SO42-)

elemental sulfur (S0)

hydrogen sulfide (H2S)

thiosulfate (S2O32-)

sulfate (SO42-)

elemental sulfur (S0)

hydrogen sulfide (H2S)

thiosulfate (S2O32-)

Explanation / Answer

Sulfate is the most oxidized form of sulfur

Thiosulfate is the next oxidized form.

Elemental sulphur is next oxidized form of sulfur

Then hydrogen sulphide is the most reduced form of sulphur

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