Enthalpy change does not depend on the reaction pathway Animation Play

Enthalpy of solution. Part 1 Student activity Play

Entropy and spontaneous changes Student activity Play

Entropy change in the surroundings Animation Play

Equivalent quotients Whiteboard exercise Play

Even and odd number of negative signs Whiteboard exercise Play

Existence of  nth root of a given number Whiteboard exercise Play

Experimental proof for the existence of dipole–dipole forces Slideshow Play

Experimental proof for the existence of dipole–dipole forces Student activity Play

Factors affecting the lattice enthalpy Animation Play

Facts and assumptions Student activity Play

Facts and assumptions – the sum of the numbers Whiteboard exercise Play

Find the difference Student activity Play

Finding a difference Whiteboard exercise Play

Flow of charge through a substance Student activity Play

Flow of charge through a substance Simulation Play

Flow of charge through a substance Whiteboard exercise Play

Forces of action and reaction act in opposite directions Whiteboard exercise Play

Forces of action and reaction act in opposite directions Student activity Play

Free energy change and the solubility of ionic compounds Student activity Play

Functions with negative values Whiteboard exercise Play

Functions with negative values Student activity Play

Gradient of a line Student activity Play

Gradient of a line Student activity Play

Graph of a function  y = ax,  for any  a Student activity Play