Autoionisation of water Whiteboard exercise Play

Avogadro's number Student activity Play

Balancing equations for redox reactions in acidic solution using half-equations Student activity Play

Balancing equations for redox reactions in acidic solution using half-equations Animation Play

Balancing equations for redox reactions in acidic solution using half-equations Whiteboard exercise Play

Balancing equations for redox reactions in alkaline solution using half-equations Animation Play

Balancing equations for redox reactions in alkaline solution using half-equations Student activity Play

Base dissociation constant Kb (1) Student activity Play

Base dissociation constant Kb (1) Whiteboard exercise Play

Base dissociation constant Kb (2) Student activity Play

Base dissociation constant Kb (2)Base dissociation constant Whiteboard exercise Play

Bases Whiteboard exercise Play

Bases (1) Student activity Play

Bases (2) Student activity Play

Basic amino acids Slideshow Play

Basic components of each living cell Illustration Play

Basic oxides Animation Play

Basketball players Animation Play

Biochemical tests; chromatography; electrophoresis and separation of tissues Class activity Play

Biochemical tests; chromatography; electrophoresis and separation of tissues Whiteboard presentation Play

Biological weathering Student activity Play

Bromide-bromate reaction: a kinetic study Student activity Play

Bromide–bromate reaction: a kinetic study Whiteboard exercise Play

Bronsted acids and bases – summary Animation Play

Bronsted–Lowry theory Whiteboard exercise Play