topic 7: oxidation, reduction and redox equations

Question 1

redox reactions definition

Answer 1

-redox reactions are electron transfer reactions, they require the MOVEMENT OF ELECTRONS.
-they occur when oxidation and reduction are happening simultaneously
-redox reactions involve a transfer of electrons from the reducing agent to the oxidising agent

Question 2

oxidation

Answer 2

-the process of electron loss, increase in oxidation number, gain of oxygen.

Question 3

reduction

Answer 3

-the process of electron gain, decrease in oxidation number, loss of oxygen.

Question 4

oxidising agent

Answer 4

An oxidising agent is one that accepts the electrons. It causes the oxidation and gets reduced.

Question 5

reducing agent

Answer 5

A reducing agent is the one that donates the electrons. It causes the reduction and gets oxidised.

Question 6

half equations

Answer 6

Half equations shows the transfer of electrons in a redox reaction.