Easy summary for redox reactions a level chemistry

Easy summary for redox reactions a level chemistry

Learning outcomes You should be able to: ■

■ calculate oxidation numbers of elements in compounds and ions ■

■ describe and explain redox processes in terms of electron transfer and changes in oxidation number

■ use changes in oxidation numbers to help balance chemical equations.

Summary 

■ Redox reactions can be explained in terms of: – increase in oxidation number (oxidation state), which is oxidation – decrease in oxidation number, which is reduction. 

■ Oxidation numbers can be used to balance equations. 

■ Redox reactions can be explained in terms of electron loss (oxidation) or electron gain (reduction).