Compounds Student activity Play

Concentration of hydroxide ions and the pH Animation Play

Concentrations in everyday life Slideshow Play

Conjugate acid–base Animation Play

Cracking and combustion of hydrocarbons Whiteboard presentation Play

Cracking and combustion of hydrocarbons Class activity Play

Cubes Student activity Play

Decomposition of calcium carbonate Animation Play

Decomposition of hydrogen iodide Animation Play

Degree of the sum, the difference and the product of polynomials Student activity Play

Degree of the sum, the difference and the product of polynomials Whiteboard exercise Play

Demonstration of the formula for the area of a triangle Whiteboard exercise Play

Derivation of an expression for the mass of substance Animation Play

Deriving the expression for equilibrium constant for ammonia synthesis reaction Animation Play

Deriving the expression for equilibrium constant for ammonia synthesis reaction Animation Play

Determination of rate equations Student activity Play

Determination of reaction rate by mass, conductometric and colorimetric measurements Student activity Play

Differentiation rules (1) Whiteboard presentation Play

Differentiation rules (1) Class activity Play

Dilution of concentrated solutions Student activity Play

Dissociation constants of conjugate acids and bases Student activity Play

Dissociation constants of ethanoic acid and the ethanoate ion Animation Play

Do catalysts affect the reaction equilibrium? Animation Play

Domain of the sum, difference, product and quotient of functions  f  and  g Animation Play

Domain of the sum, difference, product and quotient of functions  f  and  g  – activity Whiteboard exercise Play