Redox reactions - identifying conjugates (easy)

[Nomvalt]

Is the following a redox reaction? If it is a redox reaction, identify the oxidant, the reductant and their conjugates by annotating the equation.

Fe(s) + CuSO₄(aq) ---> FeSO₄(aq) + Cu(s)

I get confused with questions that ask for the conjugate oxidant of a reductant (or conjugate reductant of an oxidant).

[Edmund]

Cu²⁺ gets reduced and is therefore an oxidant. Cu is the conjugate reductant.

Fe gets oxidised and is therefore a reductant. FeSO₄ is the conjugate oxidant.

[coletrain]

i find writing the ionic equation help to identify either oxidant and or reductant

[Nomvalt]

Cu²⁺ gets reduced and is therefore an oxidant. Cu is the conjugate reductant.

Fe gets oxidised and is therefore a reductant. FeSO₄ is the conjugate oxidant.

Would it still be correct if you had said that the oxidant was Cu²⁺ in CuSO₄ or CuSO₄?

And what about if you had said that the conjugate oxidant was Fe²⁺ in FeSO₄? Or does it not really matter?

[Edmund]

Cu²⁺ gets reduced and is therefore an oxidant. Cu is the conjugate reductant.

Fe gets oxidised and is therefore a reductant. FeSO₄ is the conjugate oxidant.

Would it still be correct if you had said that the oxidant was Cu²⁺ in CuSO₄ or CuSO₄?

And what about if you had said that the conjugate oxidant was Fe²⁺ in FeSO₄? Or does it not really matter?

I think it would be correct and wouldn't matter

Not sure about this though

[Nomvalt]

2Na(s) + 2H₂O(l) ---> 2NaOH(aq) + H₂(g)

With the same question as above but using a different equation would:
oxidant = H in H₂O
reductant = Na
Conjugate reductant of oxidant= H₂
Conjugate oxidant of reductant: NaOH

?

[Edmund]

2Na(s) + 2H₂O(l) ---> 2NaOH(aq) + H₂(g)

With the same question as above but using a different equation would:
oxidant = H in H₂O
reductant = Na
Conjugate reductant of oxidant= H₂
Conjugate oxidant of reductant: NaOH

?

Yes