Subtracting numbers in standard index form Animation Play

The formation of ionic compounds is exothermic Animation Play

The inner structure of the atom Student activity Play

The standard and the general form of the equation of a straight line Animation Play

The standard equation of the straight line Animation Play

The standard form of the equation of a straight line Student activity Play

The standard form of the equation of a straight line Whiteboard exercise Play

The standard index form on the calculator display Whiteboard exercise Play

The standard index form on the calculator display Student activity Play

They displace the ions of the metal Whiteboard exercise Play

Using mean bond enthalpies in calculations. Part 1 Student activity Play

Using mean bond enthalpies in calculations. Part 2 Student activity Play

Using standard enthalpies of combustion Animation Play

Using standard enthalpies of formation Animation Play

Using ΔH°f and ΔH°c to determine standard enthalpies of reaction Student activity Play

Variance and standard deviation Whiteboard exercise Play