💡 Quick Tip: In exams, you might need to label energy profile diagrams showing the energy change - remember that exothermic reactions slope downwards from reactants to products.

💡 Memory Trick: Endothermic = Energy IN (temperature drops), Exothermic = Energy EXits (temperature rises).

💡 Exam Alert: You might be asked to mark activation energy on energy profile diagrams - it's always from reactants to the peak, regardless of whether the reaction is exothermic or endothermic.

💡 Sign Success: Negative = energy leaves (exothermic), Positive = energy enters (endothermic).

💡 Calculation Tip: Energy required to break bonds - Energy released making bonds = Overall energy change. Negative result = exothermic reaction.

💡 Safety First: Always wear safety goggles when working with acids and alkalis, and handle glassware carefully to avoid spills.

💡 Graph Pattern: Temperature rises to a peak (complete neutralisation), then falls due to dilution - this creates a characteristic mountain shape.

💡 Exam Favourite: Questions often ask why we use polystyrene cups and lids - always mention thermal insulation and reducing heat loss for accurate measurements.