Flashcards on Redox Reactions

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What are redox reactions?

Redox reactions are chemical reactions that involve the transfer of electrons from one substance to another.

Define oxidation and reduction reactions.

Oxidation is the loss of electrons from a substance, while reduction is the gain of electrons by a substance.

Why are redox reactions important?

Redox reactions play a crucial role in various processes such as combustion, respiration, and photosynthesis.

What is the importance of balancing redox equations?

Balancing redox equations ensures that the number of electrons lost in oxidation is equal to the number of electrons gained in reduction.

What are the different types of redox reactions?

The different types of redox reactions include combination, decomposition, displacement, and combustion reactions.

Provide an example of a redox reaction.

One example of a redox reaction is the reaction between magnesium and oxygen to form magnesium oxide: 2Mg + O2 → 2MgO.

How do you identify oxidation and reduction in a redox reaction?

In a redox reaction, oxidation involves an increase in the oxidation number of an element, while reduction involves a decrease in the oxidation number.

What is meant by oxidation number?

Oxidation number is a positive or negative number assigned to an atom in a compound or ion to indicate its degree of oxidation or reduction.

Explain the process of balancing redox equations.

Balancing redox equations involves assigning oxidation numbers, balancing the atoms other than hydrogen and oxygen, balancing the oxygen atoms by adding water, balancing the hydrogen atoms by adding H+ ions, and balancing the charges by adding electrons.

What is the significance of the activity series in redox reactions?

The activity series helps predict whether a redox reaction will occur, and the relative strengths of oxidizing and reducing agents.

What is a reducing agent?

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

What is an oxidizing agent?

An oxidizing agent is a substance that causes another substance to be oxidized by accepting electrons.

How does redox reaction differ from acid-base reaction?

Redox reactions involve the transfer of electrons, while acid-base reactions involve the transfer of protons (H+ ions).

What effect does a catalyst have on a redox reaction?

A catalyst increases the rate of a redox reaction by providing an alternative pathway with lower activation energy.

What are half-reactions in redox reactions?

Half-reactions represent either the oxidation or reduction part of a redox reaction, showing the transfer of electrons.

What are redox reactions?

Redox reactions are chemical reactions that involve the transfer of electrons from one substance to another.

Define oxidation and reduction reactions.

Oxidation is the loss of electrons from a substance, while reduction is the gain of electrons by a substance.

Why are redox reactions important?

Redox reactions play a crucial role in various processes such as combustion, respiration, and photosynthesis.

What is the importance of balancing redox equations?

Balancing redox equations ensures that the number of electrons lost in oxidation is equal to the number of electrons gained in reduction.

What are the different types of redox reactions?

The different types of redox reactions include combination, decomposition, displacement, and combustion reactions.

Provide an example of a redox reaction.

One example of a redox reaction is the reaction between magnesium and oxygen to form magnesium oxide: 2Mg + O2 → 2MgO.

How do you identify oxidation and reduction in a redox reaction?

In a redox reaction, oxidation involves an increase in the oxidation number of an element, while reduction involves a decrease in the oxidation number.

What is meant by oxidation number?

Oxidation number is a positive or negative number assigned to an atom in a compound or ion to indicate its degree of oxidation or reduction.

Explain the process of balancing redox equations.

Balancing redox equations involves assigning oxidation numbers, balancing the atoms other than hydrogen and oxygen, balancing the oxygen atoms by adding water, balancing the hydrogen atoms by adding H+ ions, and balancing the charges by adding electrons.

What is the significance of the activity series in redox reactions?

The activity series helps predict whether a redox reaction will occur, and the relative strengths of oxidizing and reducing agents.

What is a reducing agent?

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

What is an oxidizing agent?

An oxidizing agent is a substance that causes another substance to be oxidized by accepting electrons.

How does redox reaction differ from acid-base reaction?

Redox reactions involve the transfer of electrons, while acid-base reactions involve the transfer of protons (H+ ions).

What effect does a catalyst have on a redox reaction?

A catalyst increases the rate of a redox reaction by providing an alternative pathway with lower activation energy.

What are half-reactions in redox reactions?

Half-reactions represent either the oxidation or reduction part of a redox reaction, showing the transfer of electrons.

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