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Breaking and making bonds

Breaking and making bonds

A covalent bond is a shared pair of electrons between two atoms. Energy must be supplied to overcome the attraction between the shared electrons and the nuclei, so bond breaking is endothermic.

3.2.2 Calculating energy change from bond energies Lesson

  1. GCSE
  2. /Chemistry
  3. /3.2.2 Calculating energy change from bond energies

Step-by-step lessons on OCR GCSE Chemistry 3.2.2 Calculating energy change from bond energies. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

Lessons