Cutting a pyramid Animation Play

Detection of the ammonium ion Student activity Play

Determining the molarity of the hydrochloric acid Whiteboard exercise Play

Determining the molarity of the hydrochloric acid – summary Animation Play

Different angles Student activity Play

Discovering bases Whiteboard exercise Play

Discovering bases Student activity Play

Dissociation Animation Play

Dissociation constants of conjugate acids and bases Student activity Play

Dissociation constants of ethanoic acid and the ethanoate ion Animation Play

Dissociation constants of some bases Chart Play

Dissociation of a strong base Animation Play

Dissociation of a weak base Animation Play

Dissociation of acids, bases and salts Whiteboard presentation Play

Dissociation of acids, bases and salts Class activity Play

Dissociation of weak acids and weak bases Student activity Play

Dissociation of weak acids and weak bases Whiteboard exercise Play

Dissociation of weak bases Animation Play

Dissociation process Animation Play

Distance of a ship from its base Animation Play

Dividing powers with the same base Animation Play

Dividing powers with the same bases Student activity Play

Dividing powers with the same bases Whiteboard exercise Play

Dividing powers with the same bases: the fractions and the decimals Whiteboard exercise Play

Drawing a parallelogram Whiteboard exercise Play