Tube worms that survive near geothermal vents of hydrogen sulfide rely on bacteria living inside them to obtain energy by the oxidation of H2S to SO4^2-. What is the overall change in the oxidation number of sulfur for this reaction?

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  1. -2 in H2S
    +6 in SO4^2-

    posted by DrBob222
  2. +8

    posted by Anonymous

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