Answer:
There are no species that oxidize or reduce.
Step-by-step explanation:
A neutralization reaction is one in which an acid (or an acid oxide) reacts with a base (or basic oxide). In the reaction a salt is formed and in most cases water is formed. A Salt is an ionic compound formed by the union of ions and cations through ionic bonds. In this reaction the base provides the cation and the acid the anion
So:
acid + base ⇒ salt + water
Neutralization reactions are generally exothermic, which means they release energy in the form of heat.
Strong acids are those substances that dissociate completely, when dissolved in water. Strong acids are H₂SO₄, HCl, HNO₃, among others.
The strong bases dissociate completely, yielding all their OH-. Strong bases are alkali metals, and alkaline earth metals such as NaOH, KOH, Ba(OH)₂, Ca(OH)₂, among others.
When an ionic compound dissociates entirely, it is known as a strong electrolyte. Strong electrolytes are, for example, NaCl and HCl.
In the reactions of a strong acid with a strong base the complete neutralization of the species is carried out:
2 HCl(aq) + Ca(OH)₂(aq) → 2 H₂O(l) + 2 CaCl₂(aq)
On the other hand, oxidation-reduction reactions or redox reactions are those in which an electron transfer occurs between the reagents. An electron transfer implies that there is a change in the number of oxidation between the reagents and the products.
The gain of electrons is called reduction and the loss of electrons oxidation. That is to say, there is oxidation whenever an atom or group of atoms loses electrons (or increases its positive charges) and in the reduction an atom or group of atoms gains electrons, increasing its negative charges or decreasing the positive ones.
But as noted above, the reaction 2 HCl(aq) + Ca(OH)₂(aq) → 2 H₂O(l) + 2 CaCl₂(aq) is a neutralization. So there are no species that oxidize or reduce.