The processes that involve a transfer of electrons and can be split into half-reactions are called

The processes that involve a transfer of electrons and can be split into half-reactions are called

• A. Activated Complex
• B. Spectator Ion
• C. Half-Reactions
• D. Activation Energy

Answer: (C)

Electron transfer is the hallmark of redox chemistry, and when you can split the overall process into two parts—one showing oxidation (loss of electrons) and one showing reduction (gain of electrons)—those parts are called half-reactions. Writing them separately helps balance the exchange of electrons and shows how the electrons lost by one species are gained by another. The other terms don’t describe this splitting: an activated complex is a transient arrangement at the transition state, activation energy is the energy barrier to start a reaction, and a spectator ion is present but doesn’t participate in the electron transfer.

Electron transfer is the hallmark of redox chemistry, and when you can split the overall process into two parts—one showing oxidation (loss of electrons) and one showing reduction (gain of electrons)—those parts are called half-reactions. Writing them separately helps balance the exchange of electrons and shows how the electrons lost by one species are gained by another. The other terms don’t describe this splitting: an activated complex is a transient arrangement at the transition state, activation energy is the energy barrier to start a reaction, and a spectator ion is present but doesn’t participate in the electron transfer.