Trapeziums Simulation Play

Two sides of a parallelogram Simulation Play

Using Hess's law Whiteboard exercise Play

Using Hess's law Student activity Play

Using mean bond enthalpies in calculations Chart Play

Using mean bond enthalpies in calculations Chart 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

What is bond dissociation enthalpy? Animation Play

What is the enthalpy of hydration? Animation Play

Why does dissolving electrolytes in water cause them to dissociate? Animation Play

Why some exothermic reactions need to be initiated Whiteboard exercise Play

Why some exothermic reactions need to be initiated Student activity Play

Why some ionic compounds do not exist Student activity Play