Density and the molecular structure of matter Chart Play

Density of gases Animation Play

Density of gases Student activity Play

Density of hydrogen Animation Play

Derivation of the formula 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

Deriving the expression for free energy change Animation Play

Determination of enthalpy change in combustion reactions Whiteboard exercise Play

Determination of enthalpy change in combustion reactions (1) Student activity Play

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

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

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

Determining the relative molecular mass Animation Play

Diffraction Student activity Play

Diffraction Slideshow Play

Diffusion Student activity Play

Diffusion and pressure Student activity Play

Diffusion and pressure - statements Whiteboard exercise Play

Diffusion and smelling food Animation Play

Discontinuous variation Slideshow Play

Discontinuous variation Student activity Play

Dissolution of gases in water Whiteboard exercise Play

Dissolution of gases in water Student activity Play

Distinguish between a physical and a chemical change Whiteboard exercise Play