IB Outlines > General Ib IB Outlines > SL Chemistry Outlines

Topic 9 Oxidation And Reduction Outline

This is a sample of our (approximately) 6 page long Topic 9 Oxidation And Reduction notes, which we sell as part of the SL Chemistry Outlines collection, a 6 package written at General IB in 2014 that contains (approximately) 49 pages of notes across 10 different documents.

Learn more about our SL Chemistry Outlines

Topic 9 Oxidation And Reduction Revision

The following is a plain text extract of the PDF sample above, taken from our SL Chemistry Outlines. This text version has had its formatting removed so pay attention to its contents alone rather than its presentation. The version you download will have its original formatting intact and so will be much prettier to look at.

Topic 9: Oxidation and Reduction

9.1.1 Define oxidation and reduction in terms of electron loss and gain.

Oxidation is the loss of electrons o e.g. Mg(s) → Mg2+ + 2e Reduction is the gain of electrons. o e.g. Fe3+ + 3e → Fe(s)

9.1.2 Deduce the oxidation number of an element in a compound.

The sum of all oxidation numbers in a compound must add up to 0 The sum of all oxidation numbers in a polyatomic ion must add up to the charge o E.g. SO42-, sum of oxidation numbers = -2 Rules Oxidation number e.g. Atoms in elemental state


Al(s), Zn(s), H2, O2


Same as the charge

Mg2+ = +2 O2- = -2


Same as charge on most common ion

O = -2 H = +1

9.1.3 State the names of compounds using oxidation numbers.

Oxidation number written in roman numbers Examples:

9.1.4 Deduce whether an element undergoes oxidation or reduction in reactions using oxidation numbers.

Oxidation = increase in oxidation number Reduction - decrease in oxidation number

9.2.1 Deduce simple oxidation and reduction half-equations given the species involved in a redox reaction.

****************************End Of Sample*****************************

Buy the full version of these notes or essay plans and more in our SL Chemistry Outlines.