The enthalpy change for the transformation of solid sulphur into gaseous sulphide ions Whiteboard exercise Play

The equilibrium constant Kp Student activity Play

The equilibrium for the decomposition of hydrogen iodide Animation Play

The functions of mineral ions in the organism Whiteboard exercise Play

The genesis of fossil fuels Animation Play

The homologous series of alkanes Animation Play

The hydrogen bomb Student activity Play

The importance of mineral ions Student activity Play

The importance of mineral ions Whiteboard exercise Play

The inner structure of the atom Student activity Play

The ions in the ocean Animation Play

The mechanism of substitution of ethanol with hydrogen chloride Animation Play

The melting points of simple molecular solids Animation Play

The model of propane Illustration Play

The molecular mass of water Animation Play

The oxidation of of sulphate(IV) ions to sulphate(VI) ions Animation Play

The oxidation states of elements in compounds or ions Whiteboard exercise Play

The percentage of biogenic elements in the human organism Illustration Play

The period number and the number of electron shells Animation Play

The pH scale Illustration Play

The placenta Student activity Play

The presence of halide ions in the electrolyte Slideshow Play

The presence of metal and non-metal ions in the electrolyte Animation Play

The primitive atmosphere Slideshow Play

The process of dissolving Animation Play