Redox

What occurs at the anode of an electrolytic cell?

• Reduction occurs at the anode of an electrolytic cell.

• Oxidation occurs at the anode of an electrolytic cell.

• Neutralization occurs at the anode of an electrolytic cell.

• Decomposition occurs at the anode of an electrolytic cell.

What occurs at the cathode of an electrolytic cell?

• Oxidation occurs at the cathode.

• Reduction occurs at the cathode.

• Neutralization occurs at the cathode.

• Evaporation occurs at the cathode.

What is a redox reaction?

• A reaction that involves the transfer of protons between two species.

• A chemical reaction that involves the transfer of electrons between two species, resulting in changes in oxidation states.

• A reaction that only occurs in acidic solutions.

• A reaction that involves the formation of ionic bonds.

What does oxidation mean in a redox reaction?

• The process of gaining electrons, resulting in a decrease in oxidation state.

• The process in which an atom, ion, or molecule loses electrons, resulting in an increase in oxidation state.

• The process of combining with oxygen, leading to a decrease in oxidation state.

• The process of transferring protons between molecules, affecting their charge.

What is the relationship between oxidation states and redox reactions?

• In redox reactions, oxidation states remain constant throughout the process.

• In redox reactions, the oxidation states of elements change as electrons are transferred, reflecting the loss (oxidation) or gain (reduction) of electrons.

• Oxidation states are irrelevant in redox reactions and do not indicate electron transfer.

• Redox reactions only involve the gain of electrons, not the loss.

How do you identify the reducing agent in a redox reaction?

• The reducing agent is the species that is oxidized and loses electrons in the reaction.

• The reducing agent is the species that gains electrons in the reaction.

• The reducing agent is the species that remains unchanged during the reaction.

• The reducing agent is the species that is reduced and gains protons.

What does reduction mean in a redox reaction?

• A process in which an atom, ion, or molecule loses electrons, resulting in an increase in oxidation state.

• A process in which an atom, ion, or molecule gains electrons, resulting in a decrease in oxidation state.

• A process that involves the transfer of protons between molecules.

• A process that occurs only in acidic solutions.

How do you identify the oxidizing agent in a redox reaction?

• The oxidizing agent is the species that is oxidized and loses electrons in the reaction.

• The oxidizing agent is the species that is reduced and gains electrons in the reaction.

• The oxidizing agent is the species that remains unchanged during the reaction.

• The oxidizing agent is the species that donates electrons to another species.

What is the half-reaction method in balancing redox reactions?

• The half-reaction method involves separating the oxidation and reduction processes into two half-reactions, balancing them individually, and then combining them.

• The half-reaction method requires balancing the total charge and mass in a single equation without separating the reactions.

• The half-reaction method is a technique used only for balancing acid-base reactions, not redox reactions.

• The half-reaction method simplifies the process by using only the oxidation half-reaction and ignoring the reduction half-reaction.

What is the oxidation number?

• A value assigned to an element in a compound that represents the number of protons in the nucleus.

• A value assigned to an element in a compound that represents the number of electrons lost or gained by that element during a chemical reaction.

• A measure of the total number of atoms in a molecule.

• A value that indicates the stability of an element in a compound.