Which substance is undergoing oxidation

Watch concept videos about Redox Reactions. Question A substance undergoing oxidation a gains electrons b loses electrons. Submit Comment. Sign up to view answer. Sign up for free to see the solution Continue with Gmail Continue with Facebook or continue watching with email "Clutch really helped me by reinforcing the things I learned in class and making exam reviews a breeze. University of Texas at Austin. Log in with Facebook. Log in with Gmail.

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By using this site you agree to the use of cookies. Therefore, magnesium is a reducing agent. Another way of putting this is that the copper II ion is removing electrons from the magnesium to create a magnesium ion.

The copper II ion is acting as an oxidizing agent. Confusion can result from trying to learn both the definitions of oxidation and reduction in terms of electron transfer and the definitions of oxidizing and reducing agents in the same terms. The following thought pattern can be helpful:. Jim Clark Chemguide.

Oxidation and reduction in terms of oxygen transfer The terms oxidation and reduction can be defined in terms of the adding or removing oxygen to a compound. Oxidation and Reduction with respect to Oxygen Transfer Oxidation is the gain of oxygen. Reduction is the loss of oxygen. Oxidation and reduction in terms of hydrogen transfer These are old definitions which are no longer used, except occasionally in organic chemistry.

Oxidation and Reduction with respect to Hydrogen Transfer Oxidation is the loss of hydrogen. Reduction is the gain of hydrogen. Oxidation and reduction in terms of electron transfer Oxidation and Reduction with respect to Electron Transfer Oxidation is loss of electrons Reduction is gain of electrons. Omitting them gives: In the above reaction, magnesium reduces the copper II ion by transferring electrons to the ion and neutralizing its charge.