Chemical reaction: Cu(s)+2H+(aq)--> Cu2+ (aq) + H2 (g)

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The discussion centers on the chemical reaction Cu(s) + 2H+(aq) → Cu2+(aq) + H2(g). Participants debate whether this reaction is valid and if it qualifies as a displacement reaction. Some argue that copper does not oxidize in the presence of hydrogen ions, while others assert that it is indeed a displacement reaction due to the reactivity series. The correct representation of the reaction is clarified, emphasizing that the reaction Cu2+ + H2 → Cu + 2H+ does occur. Overall, the consensus suggests that the original equation does not accurately depict a valid chemical reaction.
primarygun
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Chemical reaction: Cu(s)+2H+(aq)----> Cu2+ (aq) + H2 (g)

Cu(s)+2H+(aq)----> Cu2+ (aq) + H2 (g)
Do we have this reaction?
If yes, is it a displacement reaction?
If no, is something about the oxiding power of particles?
Could you explain it to me ?
Best regards
 
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I see no reaction here at all! You start with separate Copper and Hydrogen and you end with separate Copper and Hydrogen. Are you counting 2Cu--> Cu2 and 2H--> H2 as "reactions"?
 
It's an ionic equation! Actually, it is supposed to like this:

2Cu (s) + 2H+ (aq) = Cu2+ (aq) + H2 (g)

I can't exactly recall where I've seen this.
 
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Does this reaction exist?
 
Isn't copper being oxidized?

Is this not an oxidation-reduction reaction?

Am I really that bad at chemistry?

:smile:
 
In my mind, I'm quite sure it is not a displacement reaction.
Hydrogen is above copper in the reactivity series.
I haven't learned any oxid redox reaction so far, so I want to consult about the concept of it.
Less reactive still can reduce more reactive metal in redox reaction?
 
I don't think this reaction is possible.

Copper metal will not oxidize when put in H+ ions, it will reduce because it is a stronger oxidizing agent.

The two half-cells:

Cu2+ + 2e- -> Cu
H2 -> 2H+ + 2e-

And together:

Cu2+ + H2 -> Cu + 2H+

This reaction WILL occur, the one you gave WILL NOT.

Take my info with a grain of salt though. I do Physics/Astronomy, not Chemistry. But I do have a background in chem, so I'm not clueless.
 
Cu2+ + H2 -> Cu + 2H+
Ya! This is a displacement reaction!
 
primarygun said:
Ya! This is a displacement reaction!

I've never heard it referred to as that, but if that's what your teacher calls it, ok.
 
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