The addition of electrons to a substance involved in a redox reaction.Group of answer choicesoxidationreduction

In the context of redox reactions, the addition of electrons to a substance is specifically referred to as reduction. This process results in a decrease in the oxidation state of the substance that gains electrons.

To clarify, in a redox (reduction-oxidation) reaction:

• Oxidation involves the loss of electrons or an increase in oxidation state.
• Reduction involves the gain of electrons or a decrease in oxidation state.

Thus, when electrons are added to a substance during a redox reaction, that substance is being reduced. This concept is fundamental in chemistry, especially in understanding processes such as corrosion, metabolic reactions, and electrochemical cells.