Question

In the reaction of chlorine with calcium, explain which atom is oxidized.

Answer 1

Answer:

The atom is oxidized is Ca.

Explanation:

• The oxidation-reduction reaction contains a reductant and an oxidant (oxidizing agent).

• The oxidation process is the process in which electrons are lost and produce positively charged ions.

• The reduction process is the process in which electrons is gained and negatively charge ions are produced.

• In the reaction of chlorine with calcium:

Ca + Cl₂ → CaCl₂,

Ca loses 2 electrons and is oxidized to Ca²⁺. (Ca → Ca²⁺ + 2e).

Cl is gains 2 electrons in "Cl₂, oxidation state zero" and is reduced to Cl⁻. (Cl₂ + 2e → 2Cl⁻).