Chemistry Quiz Search Cross word questions 0.0 / 5 ? ChemistryEnergy of reactions/Exothermic and endothermic reactionsEquilibriumGCSEAQA Created by: cjwilsonCreated on: 26-11-16 13:33 What diagram would you draw to show energy levels before and after a reaction? Energy Diagram 1 of 6 What is the least amount of energy required to start a reaction? Activation Energy 2 of 6 What am I? The energy level of my products is less than the energy level of my reactants Exothermic Reaction 3 of 6 After activation Istill require more energy Endothermic Reaction 4 of 6 What is the theory used to explain why chemical reactions occur Collision Theory 5 of 6 I am produced when reactions lose mass in an open system Gas 6 of 6
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