GCSE Bond Energies & Endothermic reactions

This PowerPoint covers a large amount of detail about exothermic and endothermic reactions and bond energies/enthalpy changes, including: grouping reactions as exothermic or endothermic, definitions of the terms exothermic and endothermic in terms of enthalpy changes and bond energies, energy level diagrams and how exothermic and endothermic reactions appear on energy level diagrams, calculating an enthalpy change using bond energies, example questions on enthalpy changes in terms of kJ/mol.