Creating an Efficient Electrical Cell to Optimal Chemical Combinations

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Discussion Overview

The discussion revolves around the creation of efficient electrical cells using various chemical combinations. Participants explore the types of materials that can be used, focusing on the reactivity of metals and other compounds, as well as the practicality of these combinations for general use.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about all possible chemical combinations for manufacturing electrical cells that require no special care, asking for a ranking from best to worst.
  • Another participant suggests that any two metals can be used as long as one is more reactive than the other, noting that a greater reactivity difference can lead to higher voltage.
  • A different viewpoint introduces the idea that non-metal compounds can also be used, citing an example of hydrogen peroxide and iodide ions as a viable combination for a redox reaction.
  • One participant questions whether Zn and Cu are the best option, proposing that if reactivity is the key factor, other combinations such as potassium and gold could also be considered.

Areas of Agreement / Disagreement

Participants express differing opinions on the best combinations for electrical cells, with no consensus on a definitive ranking or the superiority of specific materials. The discussion remains unresolved regarding the optimal choices.

Contextual Notes

There are limitations regarding the assumptions made about reactivity and practicality, as well as the definitions of "better" and "worse" in the context of chemical combinations for electrical cells.

Jhenrique
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Which are all the possible combinations of chemical elements that a common people can use for manufacture an electrical cell that no needs of special care? (say me from better to worse, please)

Also, the combination Zn/Cu is the standard combination or is just a combination among several possible?
 
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You can use any two metal where one metal is more reactive than the other.

Zn is more reactive than Cu.
As the reactivity difference increase,the voltage across the cell also increase
 
They don't even have to be metals, any two compounds that react spontaneously by a redox reaction will do, for example hydrogen peroxide + iodide ions. You can even make a concentration cell in which only the concentration of the reactant differs between the anode and cathode compartments: http://en.wikipedia.org/wiki/Concentration_cell .
 
Zn and Cu is the better option viable? If reactivity is the key parameter, so I could use K and Au...
 

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