Which phrase best defines a redox reaction?(1 point)

Responses

a reaction in which oxygen combines with different atoms
a reaction in which electrons are transferred between different atoms
a reaction in which the number of oxygen atoms is reduced
a reaction in which electrons are released from the system

To determine which phrase best defines a redox reaction, let's analyze each response:

1. "A reaction in which oxygen combines with different atoms" - This phrase describes a type of reaction but may not encompass all redox reactions. Redox reactions involve the transfer of electrons, which might or might not include the involvement of oxygen.

2. "A reaction in which electrons are transferred between different atoms" - This phrase accurately describes a redox reaction. In a redox reaction, there is an exchange of electrons between species involved.

3. "A reaction in which the number of oxygen atoms is reduced" - This phrase captures a subset of redox reactions where the reduction of oxygen atoms occurs, but it does not fully define all redox reactions. Redox reactions involve the transfer of electrons, which might involve elements other than oxygen.

4. "A reaction in which electrons are released from the system" - This phrase describes one aspect of a redox reaction. Specifically, electrons can be released during the process. However, it does not encompass all aspects of a redox reaction.

Based on the definitions provided, the phrase that best defines a redox reaction is: "a reaction in which electrons are transferred between different atoms."