Chemistry-29 Redox reaction

Front

What is a redox reaction?

Back

A redox reaction is a chemical reaction involving the transfer of electrons between two species, where one species is oxidized (loses electrons) and the other is reduced (gains electrons).

Front

Define oxidation in terms of electron transfer.

Back

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

Tags

NGSS.HS-PS1-1

Front

Define reduction in terms of electron transfer.

Back

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

Tags

NGSS.HS-PS1-7

Front

What is an oxidizing agent?

Back

An oxidizing agent is a substance that facilitates oxidation by accepting electrons from another species, thereby being reduced itself.

Tags

NGSS.HS-PS1-7

Front

What is a reducing agent?

Back

A reducing agent is a substance that donates electrons to another species, facilitating its reduction while being oxidized itself.

Front

What is the oxidation number of an element in its elemental form?

Back

The oxidation number of an element in its elemental form is always zero.

Front

How do you determine the oxidation number of an element in a compound?

Back

The oxidation number of an element in a compound can be determined by using a set of rules, including the charge of the ion, the known oxidation states of other elements, and the overall charge of the compound.

Front

What is a disproportionation reaction?

Back

A disproportionation reaction is a type of redox reaction in which a single substance is both oxidized and reduced, forming two different products.

Front

What is the oxidation state of nitrogen in NO₂^-1?

Back

The oxidation state of nitrogen in NO₂^-1 is +3.

Tags

NGSS.HS-PS1-2

Front

In the reaction Al (s) + FeSO₄ (aq) → Al₂(SO₄)₃ (aq) + Fe (s), which element is oxidized?

Back

Aluminum (Al) is oxidized as it loses electrons.