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# From the redox reaction Zn+ Ni^2+--> Zn^2+ Ni we can say that?

by Jeremy
Member since:
November 19, 2006
Total points:
244 (Level 1)

## Best Answer - Chosen by Voters

1/2 eqns:
Ni^2+ + 2e- --> Ni(s) E0: -0.24V
Zn^2+ + 2e- --> Zn(s) E0: -0.76V

the lowest reduction voltage gets reversed as its most readily oxidised (loss of electrons) ie Zn becomes oxidised
therefore,

Zn+ Ni^2+ --> Zn^2+ Ni .. E0: -0.24 -(-0.76) = 0.52V

ofcourse, under non-standard conditions, the nerst equ must be used.
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### Other Answers (1 - 30 of 83)

• Member since:
October 01, 2006
Total points:
530 (Level 2)
the above reaction can b divided into
i) Zn(s) - 2e- ---> Zn2+(aq) [E degree reduction = - .76V]
ii) Ni2+(aq) + 2e- ---> Ni(s) [E degree reduction > - .76V]
from the reactions v can say that Zn is more reactive than Ni. This is because Zn is oxidised in preference to Ni as reduction potential of Zn2+ is more negative than that of Ni2+. Since in a redox reaction , both oxidation & reduction occur , so Ni2+ is reduced as oxidation has already occured .
• 4 people rated this as good
• by james n
Member since:
August 27, 2006
Total points:
356 (Level 2)
no/squared

### Source(s):

thought
• by lenpol7
Member since:
November 25, 2006
Total points:
45,922 (Level 7)
This is a Redox reaction.
Red - Ox
Red - Reduction the gain of electrons
Ox - Oxidation The loss of electrons.

Zn loses two electrons to become Zn^2+ - so it is oxidised.
Ni^2+ gains two electrons to become Ni - so it is reduced.
• 2 people rated this as good
• by Aldo
Member since:
October 03, 2006
Total points:
5,614 (Level 5)
Yes, you can say that the Zinc metal is Oxidized-that is from 0 to higher oxidation state equals +2. If anything is oxidized, something must be reduced which is the Ni+2, going from +2 to zero.

Under standard conditions, the emf or voltage for this redox reaction shows that it is positive. This means the reaction will happen as written.

A helpful device is the EMF series which places Zinc on top or ahead of Nickel. Again, these are under standard conditions. Else, you have to calculate using the Nerst Equation.
• by Tonia
Member since:
July 09, 2006
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1,495 (Level 3)
Zinc is more powerful then Nickel, I think Mercury comes pretty close.
• Member since:
November 27, 2006
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144 (Level 1)
Zn is being reduced and Ni is being oxidised.By doing so both being close to stable state.
• Member since:
January 08, 2007
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121 (Level 1)
Ni is more oxidising agent than Zn or
more oxidation potential is Ni

### Source(s):

no source
• by TOMY C
Member since:
December 07, 2006
Total points:
121 (Level 1)
zn is acting as a reducing agent and nickel as an oxidizing agent.
Zn gives out two ectrons to nickel and get oxidized. Ni accepts two electrons and get reduced. In a redox reaction, oxidizing agent get reduzed and reducing agent get oxidized.

### Source(s):

I am a Chemist
• 1 person rated this as good
• Member since:
November 11, 2006
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497 (Level 2)
The zinc is much more reactive than the nickel.Also,the nickel is oxidised and the ainc is reduced.
• 4 people rated this as good
• by beto
Member since:
November 14, 2006
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554 (Level 2)
You can say that zinc is higher in the electromotive series, therefore more reactive, than nickel.
• Member since:
August 18, 2006
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What?
• 2 people rated this as good
• Member since:
November 24, 2006
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185 (Level 1)
nothing
• 1 person rated this as good
• by 602960x
Member since:
September 10, 2006
Total points:
200 (Level 1)
it makes it harder to breathe or kiss longer

### Source(s):

Didn't take that in college
• 1 person rated this as good
• Member since:
December 06, 2006
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379 (Level 2)
I am not very good at math. I leave that burden with my higher power.
• 1 person rated this as good
• Member since:
September 19, 2006
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151 (Level 1)
The reaction tells us that zinc has larger tendency to form a cation than nickel and thus we can say that reduction potential of zinc is less than that of nickel.
• 2 people rated this as good
• by Pat
Member since:
July 09, 2006
Total points:
325 (Level 2)
sure dude...
• Member since:
January 07, 2007
Total points:
42 (Level 1)
Zn+Ni^2= Zn (subscript 2)Ni....but there are some expections...some books include Zinc as a transition element...so, if its a transition element, the its written this way: ZN(II)Ni....THE (II) is in roman numeral form
• by ?
Member since:
September 14, 2006
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is this english??
• 1 person rated this as good
• Member since:
January 02, 2007
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77,417 (Level 7)
Zinc metal dissolves in a solution of Ni(II), if the reaction is exothermic (or spontaneous).
• Member since:
October 16, 2006
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106 (Level 1)
zinc is getting oxidised and nickel is getting reduced
• by maussy
Member since:
June 09, 2006
Total points:
67,390 (Level 7)
From the link under you see that the redox potential of Ni++ = -0.257
Whereas that of zinc Zn++ is -0.762. youcaninfere that nickel ha sbenn reduced and Zinc oxidized loosing two electrons