Identify the element oxidized and the element reduced, in this chemical equation:
H3AsO4 +H2S arrow H3AsO3 +S + H2O
Identify the oxidizing agent and the reducing agent
Justify why this is a redox reaction
1
Expert's answer
2015-12-07T11:25:49-0500
(+5) (-2) (+3) (0) 2H3AsO4 + 5H2S → As2S3 + 2S + 8 H2O The oxidation state of Arsenic and Sulfur changes during the reaction. So this reaction is redox. The oxidation state of Arsenic is lessening, so Arsenic is the oxidizing agent in this reaction. The oxidation state of Sulfur is increasing, so Sulfur is the reducing agent in this reaction.
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