Determination of enthalpy change in combustion reactions (2) Student activity Play

Determination of reaction rate by measuring the volume or pressure of the gas evolved Student activity Play

Determining the enthalpy of solution of sodium hydroxide Animation Play

Determining the relative molecular mass Animation Play

Development of technology and crop yields Slideshow Play

Diffraction of sound waves Student activity Play

Diffraction of sound waves Animation Play

Diffusion Student activity Play

Diffusion Student activity Play

Diluting concentrated sulphuric(VI) acid with water Animation Play

Dilution of concentrated acids Student activity Play

Dispersion forces in halogens Animation Play

Dissipation of heat Animation Play

Dissolution of gases in water Student activity Play

Dissolution of gases in water Whiteboard exercise Play

Diurnal changes in the body temperature of the camel Animation Play

Ecological tolerance Student activity Play

Effect of concentration on chemical equilibrium Student activity Play

Effect of number of gas particles on the pressure Animation Play

Effect of temperature and catalyst on the reaction rate Whiteboard presentation Play

Effect of temperature and catalyst on the reaction rate Class activity Play

Effect of temperature increase on reaction rate at the molecular level Animation Play

Effect of temperature on an exothermic reaction Animation Play

Effect of temperature on chemical equilibrium Student activity Play

Effect of temperature on chemical equilibrium Whiteboard exercise Play