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What is a redox reaction?

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

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What is oxidation?

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

Tags

NGSS.HS-PS1-1

Front

What is reduction?

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

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What is an oxidizing agent?

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An oxidizing agent is a substance that causes oxidation by accepting electrons from another substance.

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What is a reducing agent?

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A reducing agent is a substance that causes reduction by donating electrons to another substance.

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How can you identify a redox reaction?

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A redox reaction can be identified by changes in oxidation states of the reactants, where one species is oxidized and another is reduced.

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

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The oxidation state of an element that is oxidized increases.

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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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In the reaction 2AgNO3 + Zn → Zn(NO3)2 + 2Ag, which element is oxidized?

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Zinc (Zn) is oxidized.

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In the reaction 4Fe + 3O2 → 2Fe2O3, which element is oxidized?

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Iron (Fe) is oxidized.

Tags

NGSS.HS-PS1-2