Iodine, i2, has many uses, including the production of dyes, antiseptics, photographic film, pharmaceuticals, and medicinal soaps. it forms when chlorine, cl2, reacts with iodide ions in a sodium iodide solution. which of the following half-reactions for this oxidation‑reduction reaction describes the oxidation, and which one describes the reduction? cl2 + 2e‒ → 2cl‒ 2i‒ → i2 + 2e‒

Explanation:

Oxidation-reduction reaction is the simulaneous oxidation and reduction of the substances and is represented by two half-reactions.

The oxidation half-reaction is the loss of electrons, with the consequent increase in the oxidation state by the oxidized substance.

In this case, the process that shows the loss of electrons is:

That reaction shows:

On the other hand, the reduction half-reaction is the gain of electrons, with the consequent reduction of the oxidation state by the reduced substance.

In this case, the process that shows the gain of electrons is:

That reaction shows:

Summary:

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).