Enthalpy of formation of neonium chloride Whiteboard exercise Play

Equilibrium constant expression Student activity Play

Essential elements Whiteboard exercise Play

Essential elements – macro-elements; trace elements and ultra-trace elements Student activity Play

Examples of functions with dense domain Animation Play

Examples of functions – a table Student activity Play

Examples of sets and their elements Animation Play

Flame test Animation Play

Flame tests Student activity Play

Forces affecting an element of a string Animation Play

Forces affecting an element of a string Student activity Play

Forces affecting an element of a string Whiteboard exercise Play

Formation of anions Animation Play

Formation of oxides Student activity Play

Formation of oxides Whiteboard exercise Play

Group trends Animation Play

Group trends Student activity Play

Haloalkanes (3) Whiteboard exercise Play

Haloalkanes (3) Student activity Play

Hess's law Student activity Play

How can we check whether a given substance is an element or a compound? Animation Play

How the nervous system works Student activity Play

How to find the molar mass of an element or a compound Animation Play

How to find the molar mass of an element? Animation Play

How to find the valence of an element from the periodic table Animation Play