TEST - REDOX Reactions

Front

What is a redox reaction?

Back

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

Front

What is oxidation?

Back

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?

Back

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

Front

What is an oxidizing agent?

Back

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

Front

What is a reducing agent?

Back

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

Front

How can you identify a redox reaction?

Back

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

Front

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

Back

The oxidation state of an element that is oxidized increases.

Front

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

Back

The oxidation state of an element that is reduced decreases.

Front

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

Back

Zinc (Zn) is oxidized.

Front

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

Back

Iron (Fe) is oxidized.

Tags

NGSS.HS-PS1-2