The electronegativity concept Student activity Play

The electronegativity of elements and the chemical properties of their compounds Whiteboard exercise Play

The energy changes during the course of a chemical reaction Animation Play

The equilibrium for the decomposition of hydrogen iodide Animation Play

The flow of chemical energy through the food chain Animation Play

The formation of ionic compounds is exothermic Animation Play

The importance of chemical reactions Student activity Play

The ionic character of s-block-metal compounds Whiteboard exercise Play

The ionic character of s-block-metal compounds Student activity Play

The ionic character of s-block-metal compounds Whiteboard exercise Play

The law of periodicity and the properties of elements Animation Play

The meaning of the chemical formulae Whiteboard exercise Play

The modern periodic table Animation Play

The modern periodic table (1) Student activity Play

The modern periodic table (2) Student activity Play

The names of elements Animation Play

The nature of chemical reactions Student activity Play

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

The properties of chemical compounds and their constituent elements Student activity Play

The properties of chemical compounds and their constituent elements Slideshow Play

The reaction between nitrogen and hydrogen Animation Play

The reaction between sodium and water Animation Play

The reaction of sodium hydroxide solution with a solution of a zinc(II) salt Whiteboard exercise Play

The relationship between the electronegativity of elements and the chemical properties of their compounds Student activity Play

The role of enzymes in chemical digestion Animation Play