Master bond energy calculations for GCSE Chemistry with this comprehensive worksheet — 30 practice questions, worked examples, and full mark scheme in one instant PDF download.

Confidence with ΔH = Σ(bonds broken) − Σ(bonds made) is essential for GCSE Chemistry exam success. This worksheet gives students plenty of practice at varying levels of difficulty, covering exothermic and endothermic reactions.

What's Included:

• 30 bond energy calculations at Foundation and Higher Tier difficulty
• Step-by-step worked examples to model the method
• Real-world applications — combustion, neutralisation, decomposition
• Formula guidance: ΔH = Σ(bonds broken) − Σ(bonds made)
• Understanding exothermic and endothermic reactions
• Full mark scheme with detailed solutions
• Fully aligned with AQA, OCR & Edexcel GCSE Chemistry specifications
• Instant PDF download — begin revising right away
• Easy-to-print format

Topics Covered:

• Calculating enthalpy change using bond energies
• Understanding bond breaking (endothermic) and bond making (exothermic)
• Interpreting energy level diagrams
• Calculating energy changes for combustion reactions
• Applying calculations to real reaction scenarios

Perfect for: GCSE Chemistry students in Years 10 and 11, science teachers building calculations revision lessons, and students preparing for AQA, OCR & Edexcel GCSE Chemistry exams.

Download now and build the calculation confidence you need for exam success!