Chemistry: Noble metals, big need of fast help

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SUMMARY

The discussion focuses on the chemical reactions involving zinc (Zn) and hydrochloric acid (HCl), specifically the equation for Zn reacting with HCl. The correct balanced equation is Zn + 2HCl → ZnCl2 + H2 (g), which can also be represented in redox terms as Zn + 2H+ → Zn2+ + H2 (g). Additionally, the conversation touches on the reducing ability of noble metals, which are characterized by low reducing ability due to their reluctance to lose electrons. Understanding the reactivity series of metals, including hydrogen, is crucial for predicting chemical reactions and determining which metals will oxidize.

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Saturnfirefly
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Hi!
I'm writing a lab report and have some questions that I can't find the answer of... I really hope that someone can help me.

Homework Statement


1. First of... I'm having a small problem with writing an equation for Zn reacting with a HCl solution (only H+ should be in the equation).

2. In genereal, would you say that the so-called precious metals (noble) have high or low recuding ability? Explain your answer

3. What practical use is there in knowing the reactivity series of the metals and of hydrogen?

Homework Equations





The Attempt at a Solution


1. Zn (s) + 2H+ (aq) -> Zn (s) + H'2 (gas) hmm?
2. Haven't found anything...
3. To know what metals that oxidies?... or?... someone that can develope my answer if it's right?


Please, I'm desperate right now... I have to go to sleep soon and need this to be done... many thanks.
 
Last edited:
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I think you mean:
Zn + 2HCl -> ZnCl2 + H2 (g)

or if you prefer as a redox
Zn + 2H+ -> Zn2+ + H2 (g)
 
thank you, anyone that can clarify the rest?
and should Zn be aq in the reaction?
 

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