The arrangement of chemical elements in the periodic table Animation Play

The chemist's counting unit – the mole Whiteboard exercise Play

The chemist's counting unit – the mole Student activity Play

The chemist's counting unit – the mole Slideshow Play

The chemist's counting unit – the mole Slideshow Play

The concentration of the solutions after dilution Animation Play

The concept of pH Student activity Play

The early theory of atoms by Democritus Animation Play

The effect of acid rains on environment Animation Play

The effect of sulphur dioxide on plants Slideshow Play

The effect of sulphur dioxide on the process of corrosion Slideshow Play

The elements of life Student activity Play

The elements of life Student activity Play

The elements of life Chart Play

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 formation of aluminium sulphide: calculations Animation Play

The formation of ionic compounds is exothermic Animation Play

The ideal gas law Whiteboard exercise Play

The ideal gas law Student activity Play

The impact of air pollutants on the environment Student activity Play

The importance of chemical reactions Student activity Play

The importance of mineral ions Student activity Play

The law of conservation of mass Animation Play