C7

• Exothermic reactions are reactions that transfer energy to the surroundings so temperature increases
• In exothermic reactions, the products have less energy than the reactants
• Examples of exothermic reactions are combustion, oxidation and neutralisation
• Examples of endothermic reaction is thermal decomposition
• Endothermic reactions are reactions that take in energy from surroundings
• In endothermic reactions, products have more energy content than reactants.
• Some endothermic reactions cause a decrease in temperature and other require a supply of energy to keep reaction going