Oxidation Reduction Reactions

What is an oxidation reduction reaction?

• A reaction where electrons move between atoms

• A reaction where atoms gain or lose protons

• A reaction where atoms combine to form a compound

• A reaction where atoms change their physical state

What is reduction?

• A gain of electrons

• A loss of electrons

• A gain of protons

• A loss of protons

What is oxidation?

• A gain of electrons

• A loss of electrons

• A gain of protons

• A loss of protons

In the reaction between sodium and chlorine, which atom is being oxidized?

• Sodium

• Chlorine

• Both sodium and chlorine

• Neither sodium nor chlorine

In the reaction between sodium and chlorine, which atom is being reduced?

• Sodium

• Chlorine

• Both sodium and chlorine

• Neither sodium nor chlorine

What are oxidation numbers used for?

• To keep track of how charges change during a reaction

• To determine the physical state of atoms

• To calculate the energy released in a reaction

• To balance chemical equations

What are the oxidation numbers of sodium and chlorine in sodium chloride?

• Sodium: +1, Chlorine: -1

• Sodium: -1, Chlorine: +1

• Sodium: 0, Chlorine: 0

• Sodium: +1, Chlorine: +1

What are the half reactions in the reaction between sodium and chlorine?

• Sodium oxidation and chlorine reduction

• Sodium reduction and chlorine oxidation

• Sodium oxidation and chlorine oxidation

• Sodium reduction and chlorine reduction

Can oxidation and reduction happen independently of each other?

• Yes, they can happen independently

• No, they always happen together

• It depends on the specific reaction

• Only in certain types of reactions

What is the overall process in an oxidation reduction reaction?

• Electrons are transferred between atoms

• Atoms combine to form a compound

• Atoms change their physical state

• Protons are transferred between atoms