Oxidation Reduction Reactions

Front

What is an oxidation-reduction (redox) reaction?

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An oxidation-reduction (redox) reaction is a chemical reaction in which the oxidation states of one or more species are changed. It involves the transfer of electrons between two species.

Front

Define oxidation in the context of redox reactions.

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Oxidation is the process in which an atom, ion, or molecule loses electrons, resulting in an increase in oxidation state.

Front

Define reduction in the context of redox reactions.

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Reduction is the process in which an atom, ion, or molecule gains electrons, resulting in a decrease in oxidation state.

Front

What is an oxidizing agent?

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An oxidizing agent is a substance that gains electrons in a redox reaction and is thereby reduced.

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What is a reducing agent?

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A reducing agent is a substance that loses electrons in a redox reaction and is thereby oxidized.

Front

What happens to the oxidation state of an element that is reduced?

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The oxidation state of an element that is reduced decreases.

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What is a half-reaction in redox chemistry?

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A half-reaction is an equation that shows either the oxidation or reduction process separately, indicating the transfer of electrons.

Front

How can you identify the species that is oxidized in a redox reaction?

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The species that is oxidized is the one that loses electrons and increases its oxidation state.

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What is the role of electrons in redox reactions?

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Electrons are transferred between species in redox reactions, with one species being oxidized (losing electrons) and the other being reduced (gaining electrons).

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What is the significance of balancing redox reactions?

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Balancing redox reactions is important to ensure that the number of atoms and the charge are conserved in the reaction.