Lesson Slideshow Section 01
Unit Summary Section 02
Key Concepts
Oxidation Numbers, Winkler Method, Voltaic Cells, Electrolysis, Standard Electrode Potentials
Assessment Objectives
Assign oxidation states, Draw electrochemical cells, Predict electrolysis products
Prior Knowledge Needed
Ionic charge, ionic equations, electronegativity (S2.1)
IB Syllabus Reference
R2.1
Interactive Study Guide
Click here to view the full, detailed topic summary for this unit.
29
Cu
63.546
Video Lesson Section 03
Video Instruction
2 Lessons Available
Redox Titrations
Voltaic Cells_Calculating Cell Potentials
Practice Quiz Section 04 · Interactive
10
Ne
20.180
Vocabulary Review Section 05
Oxidation
The loss of electrons or an increase in oxidation state.
Reduction
The gain of electrons or a decrease in oxidation state.
Oxidizing Agent
A substance that gains electrons and is themselves reduced.
Reducing Agent
A substance that loses electrons and is themselves oxidized.
Oxidation State
A number assigned to an atom reflecting its theoretical charge in a compound.
Activity Series
A list of metals ranked by their reactivity (ease of oxidation).
Anode
The electrode where oxidation occurs (Negative in Voltaic, Positive in Electrolytic).
Cathode
The electrode where reduction occurs (Positive in Voltaic, Negative in Electrolytic).
Electrolysis
Process of driving a non-spontaneous redox reaction using an external power source.
Voltaic Cell
Device that converts chemical energy from spontaneous redox reactions into electrical energy.
Salt Bridge
A bridge containing an electrolyte that completes the circuit and maintains electrical neutrality.
Displacement Reaction
A reaction where a more reactive element displaces a less reactive element from a compound.
Electrode
A conductor used to establish electrical contact with a nonmetallic part of a circuit.
26
Fe
55.845
Revision Notes Section 06
79
Au
196.967
Practice Tests Section 07
17
Cl
35.45
Worksheets & Labs Section 08