Where does the energy go?
Where does the energy go?
The surroundings are everything outside the reacting chemicals, including the water, container and air. Energy can transfer between the reacting chemicals and their surroundings.
Step-by-step lessons on OCR GCSE Chemistry 3.2.1 Exothermic and endothermic reactions and reaction profiles. 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.