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

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Best Answer
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

in answer to your question, yes, it can be said.
ofcourse, under non-standard conditions, the nerst equ must be used.
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  • Aldo answered 8 years ago
    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.
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  • theresegerbich answered 8 years ago
    Nickel reduces from Ni+2 + 2e- to Ni
    Zinc oxidizes from Zn to Zn+2 and 2e-

    So yes, that is a valid equation
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  • Ehijie answered 8 years ago
    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 .
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  • Wii answered 8 years ago
    Zn=nI3i
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  • piratesofmaddness answered 8 years ago
    Zn gets oxidized and Ni gets reduced
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  • mulan answered 8 years ago
    Zn is more active than Ni
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  • marvbus20 answered 8 years ago
    Zn is oxidized and Ni is reduced. Zn is the reducing agent and Ni is the oxidizing agent.
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  • lenpol7 answered 8 years ago
    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.
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  • Paralyzer96 answered 8 years ago
    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
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  • Caribbean_Girl answered 8 years ago
    Zn has been oxidised by the Ni2+ ions to give Zn2+ ions
    Zn(s)-->Zn2+ + 2e-

    The Ni2+ ions are reduced by the Zn2+ ions in solution to give Ni metal
    Ni2+ + 2e--->Ni(s)

    Therefore Zn metal is the reducing agent and Ni2+ is the oxidizing agent
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  • From the redox reaction Zn+ Ni^2+--> Zn^2+ Ni we can say that?
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  • annie*bananie answered 8 years ago
    all the peeps who are saying something about 'more reactive' haven't taken chem in a while (neither is 'more' reactive than the other)

    one is oxidized, one is reduced, (nickel and zinc, respectively), one is an oxidizing agent, the other is a reducing agent (the reverse, respectively)

    that if this reaction is happening at standard conditions, it would be spontaneous, as E is positive

    that if this was set up in a lab as an electrochemical cell with all associated parts (salt bridge, etc), that the zinc would be going into solution while the Nickel would be accumulating in solid form - and by one convention, the zinc would be the anode (because that is where oxidation occurs) and the nickel the cathode, but by the convention of 'electron flow' those lables would be reversed
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  • guyfromthesky answered 8 years ago
    Here you go pal:

    Zinc is a reducing agent as it has reduced nickel's oxidation state from +2 to 0. Ni^2+ is therefore the oxidizing agent

    Source(s):

    Chemistry Class
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  • dominic m answered 8 years ago
    Zn is more active than Ni.
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  • vishnu_9us answered 8 years ago
    where Zn shows oxidation and at the same time Ni shows the reduction.
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  • MW answered 8 years ago
    Zn is oxidised because of an increase in oxidising # while Ni is reduced due to the decrease in oxidising #

    Source(s):

    I study chem
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  • AAK answered 8 years ago
    From this reaction, one can infer that Zn is the reducing agent, since it reduces Ni2+ to Ni, and gets oxidised to Zn2+
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  • penny answered 8 years ago
    oxidation and reduction is occur in the same time. Zn is having oxidation from 0 to +2.
    nickel is having reduction from +2 to 0.
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  • santosh k answered 8 years ago
    Ni is more oxidising agent than Zn or
    more oxidation potential is Ni

    Source(s):

    no source
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  • TOMY C answered 8 years ago
    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
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  • nakul kundra answered 8 years ago
    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 .
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  • maussy answered 8 years ago
    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

    Source(s):

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  • sandudreamz answered 8 years ago
    Zn is more reactive than Ni
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  • Srinivasan N answered 8 years ago
    Zn is being reduced and Ni is being oxidised.By doing so both being close to stable state.
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  • Laura K answered 8 years ago
    We can say, Zn---> Zn^2+ +e- oxidized(ande)
    Ni^2+ +e- __---> Ni is reduced (cathode)
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  • James S answered 8 years ago
    A more reactive metal will displace a less reactive metal from its compound. The order goes- Potassium, Sodium, Calcium, Magnesium, Aluminium, Zinc, Iron, Tin, Lead, Hydrogen, Copper, Mercury, Silver, Gold, Platinum.

    Or- Please send cats monkeys and zebras in two large hired cages. Make sure get padlock.

    See complete list http://en.wikipedia.org/wiki/Reactivity_...
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  • Sandy Williams answered 8 years ago
    zinc is oxidized n nikel is reduced..u can actually notice that the oxidation number of zinc increase from 0 to +2 and the oxidation number for nikel decreases from +2 to 0.
    hence, nikel is the oxidizing agent because it release 2 electrons to oxidize zinc while zinc is the reducing agent because it accepts 2 electrons frm nikel to reduce nikel

    Source(s):

    chemistry knowledge
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  • reb1240 answered 8 years ago
    Zinc has been oxidized, as it has lost 2 electrons and Nickel has been reduced, as it has gained 2 electrons
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  • Dr Dave P answered 8 years ago
    Zinc metal dissolves in a solution of Ni(II), if the reaction is exothermic (or spontaneous).
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  • mohammed muth. answered 8 years ago
    hi
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