Combined Science GCSE
Conservation of energy in chemical reactions
What Conservation of energy in chemical reactions means in Combined Science GCSE, as defined for AQA.
Definition of Conservation of energy in chemical reactions
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Read the wording for your board, then hide it and explain Conservation of energy in chemical reactions in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Energy is not lost when bonds break; it is stored in the separated atoms, and overall change is found by comparing energy in with energy out.
Topics that use Conservation of energy in chemical reactions
- The energy change of reactions (HT only) (AQA GCSE)
Related terms
- Bond breaking
- Bond breaking and bond formation
- Endothermic reaction
- Energy transfer to and from the surroundings
- Exothermic and endothermic processes
- Exothermic and endothermic reactions
- Exothermic reaction
- Overall energy change of a reaction
Using Conservation of energy in chemical reactions in the exam
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