Does a compound have a constant composition? Student activity Play

Efficiency and economy Class activity Play

Efficiency and economy Whiteboard presentation Play

Electricity from solar energy Student activity Play

Elimination reactions in halogenated hydrocarbons Whiteboard exercise Play

Elimination reactions in halogenated hydrocarbons Whiteboard exercise Play

Elimination reactions in halogenated hydrocarbons (1) Student activity Play

Elimination reactions in halogenated hydrocarbons (2) Student activity Play

Emission of hydrocarbons Animation Play

Energetic effects of combustion Whiteboard exercise Play

Energetic effects of combustion Student activity Play

Energy changes during the combustion of Period 3 elements in oxygen Animation Play

Energy cycle method Animation Play

Energy losses Whiteboard exercise Play

Energy losses Student activity Play

Energy released by combustion of fossil fuels Chart Play

Energy sources and cell respiration Student activity Play

Energy sources and cell respiration Whiteboard exercise Play

Energy transfer during chemical reactions Student activity Play

Enthalpy Student activity Play

Enthalpy of combustion and energy values of fuels Slideshow Play

Enthalpy of combustion of ethanol Animation Play

Environmental effects of fuel combustion Student activity Play

Environmental effects of fuel combustion Whiteboard exercise Play

Examination of complete and incomplete combustion Animation Play