Respuesta :
Answer:
HNO3 is the oxidizing agent
Explanation:
Step 1:
The oxidizing agent is responsible to oxidize another. but itself undergoes a reduction .
Fe2S3:
Fe has an oxidation number of +3
S has an oxidation number of -2
HNO3:
O has an oxidation number of -2 ( we have 3 times O so this makes -6)
H has an oxidation number of +1
N has an oxidation number of +5
Fe(NO3)3
O has an oxidation number of -2 ( we have 3 times O so this makes -6)
Fe has an oxidation number of +3
Since NO3 has an oxidation number of -1; N has an oxidation number of +5
S alone has an oxidation number of 0
NO2:
O has an oxidation number of -2 (we have 2 times O, this makes -4)
N has an oxidation number of +4
Fe doesn't change from oxidation number. It stays +3
N goes from +5 to +4 → this is a reduction
S goes from -2 to 0 → this is an oxidation
The reducing agent is the compound that contributes the oxidized species (S).
The oxidizing agent contributes the reducing species (N)
The answer is HNO3
The oxidizing agent in the reaction that's given is HNO3.
An oxidizing agent is also referred to as an oxidant. It should be noted that an oxidizing agent gains electrons. It is also reduced during a chemical reaction.
An oxidizing agent has the ability to oxidize other substances and accept their electrons. In this case, the oxidizing agent in the reaction that's given is HNO3.
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