is Fe2O3+3H2--->2Fe+3H2O a redox reaction?
回答 (11)
2017-03-08 4:28 pm
Fe₂O₃ + 3H₂ → 2Fe + 3H₂O
This is a redox reaction.
Explantion 1:
Fe₂O₃ is reduced because the oxidation number of Fe decreases from +3 (in reactant Fe₂O₃) to 0 (in product Fe).
H₂ is oxidized because the oxidation number of H increases from 0 (in reactant H₂) to +1 (in product H₂O).
Explantion 2:
Fe₂O₃ is reduced because it loses oxygen (to become Fe).
H₂ is oxidized because it gains oxygen (to become H₂O).
This is a redox reaction.
Explantion 1:
Fe₂O₃ is reduced because the oxidation number of Fe decreases from +3 (in reactant Fe₂O₃) to 0 (in product Fe).
H₂ is oxidized because the oxidation number of H increases from 0 (in reactant H₂) to +1 (in product H₂O).
Explantion 2:
Fe₂O₃ is reduced because it loses oxygen (to become Fe).
H₂ is oxidized because it gains oxygen (to become H₂O).
2017-03-09 10:27 pm
Yes.
2017-03-09 9:10 pm
yes
2017-03-08 1:32 pm
indeed Fe is reduced, H is oxidized
2017-03-08 1:23 pm
Yes.
2017-03-13 1:30 am
YES,
Fe2O3 is undergoing reduction by releasing off O and reduced to Fe and H is getting oxidized to H2O
Fe2O3 is undergoing reduction by releasing off O and reduced to Fe and H is getting oxidized to H2O
2017-03-11 6:34 am
D
2017-03-08 9:51 pm
Fe2O3+H2----->2FeO+H2O
2017-03-08 3:01 pm
You are taking iron oxide and converting it into iron metal. That is a reduction process, and any reduction has to be linked to an oxidation (the electrons have to come from somewhere). So, yes, it is a redox reaction. The hydrogen is what undergoes oxidation.
2017-03-12 4:39 pm
All chemical change ( not physical)reactions are redox-oxidation reactions
2017-03-08 5:54 pm
In any chemical reaction, there is simultaneous oxidation and reduction takes place then it is said to be redox reaction.
Fe2O3 + 3H2 ---> 2Fe + 3H2O
In this reaction, oxidation and reduction reactions are explained in terms of either addition or removal of oxygen.
Removal of oxygen from iron oxide is the reduction and addition of oxygen to hydrogen is the oxidation.
Here iron oxidises the hydrogen and hydrogen reduces Iron.
So, it is an example of redox reaction.
Fe2O3 + 3H2 ---> 2Fe + 3H2O
In this reaction, oxidation and reduction reactions are explained in terms of either addition or removal of oxygen.
Removal of oxygen from iron oxide is the reduction and addition of oxygen to hydrogen is the oxidation.
Here iron oxidises the hydrogen and hydrogen reduces Iron.
So, it is an example of redox reaction.
收錄日期: 2021-04-18 16:03:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170308051843AAOMWU1