Fundamentals of Oxidation and Reduction

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What is oxidation in a chemical reaction?
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Oxidation is the process where an atom, molecule, or ion loses electrons.
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What is reduction in a chemical reaction?
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Reduction is the process where an atom, molecule, or ion gains electrons.
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How can you identify a redox reaction?
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A redox reaction involves the transfer of electrons from one species to another, involving both oxidation and reduction.
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What is an oxidizing agent?
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An oxidizing agent is a substance that accepts electrons in a reaction, causing another substance to be oxidized.
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What is a reducing agent?
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A reducing agent is a substance that donates electrons in a reaction, causing another substance to be reduced.
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Describe a real-world example of oxidation and reduction.
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The rusting of iron is a real-world example, where iron is oxidized by oxygen in the presence of water.
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Define oxidation number.
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An oxidation number is a concept that indicates the degree of oxidation of an atom in a compound.
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What role does oxygen play in redox reactions?
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Oxygen often acts as an oxidizing agent, accepting electrons from other substances during redox reactions.
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How does electronegativity relate to redox reactions?
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Electronegativity indicates the tendency of an atom to attract electrons, influencing redox processes by determining electron flow.
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What is the significance of redox reactions in metabolism?
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Redox reactions are essential in metabolism for energy production through processes like cellular respiration.
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What do the terms 'half-reaction' mean in redox chemistry?
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A half-reaction is either the oxidation or reduction part of a redox reaction showing electrons transferred.
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How do batteries utilize redox reactions?
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Batteries convert chemical energy to electrical energy through redox reactions involving electrode materials.
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Explain the term 'redox couple'.
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A redox couple is a pair of oxidant and reductant used in a redox reaction.
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What is a standard electrode potential?
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Standard electrode potential is a measure of the tendency of a chemical species to gain electrons under standard conditions.
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How do catalysts affect redox reactions?
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Catalysts increase the rate of redox reactions without being consumed, enhancing efficiency of electron transfer.
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