Chemical Reactions

Chemical reactions from Edexcel GCSE C2 Chemistry Exam

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  • Chemical Reactions
    • Reactants must collide with sufficient energy to break old bonds
    • an exothermic reaction gives out energy
      • an endothermic reaction takes in energy
        • Chemical Reactions
          • Reactants must collide with sufficient energy to break old bonds
          • an exothermic reaction gives out energy
            • an endothermic reaction takes in energy
            • breaking bonds is endothermic
            • Making bonds is exothermic
            • reaction rate is the rate reactants are used up
            • Changes in concentration of the reactants temperature and surface area changes the reaction rate
            • Catalysts are used to increase reaction rates
            • catalytic converters in cars convert carbon monoxide and unburnt hydrocarbons to CO2 and Water
      • breaking bonds is endothermic
      • Making bonds is exothermic
      • reaction rate is the rate reactants are used up
      • Changes in concentration of the reactants temperature and surface area changes the reaction rate
      • Catalysts are used to increase reaction rates
      • catalytic converters in cars convert carbon monoxide and unburnt hydrocarbons to CO2 and Water

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