AQA GCSE Chemistry C2.5 Energy and Reactions
When energy is given out to the surroundings by a chemical reaction
When energy is taken into chemical bonds from the surroundings.
This involves the breaking and or forming of chemical bonds.
Reactions that do not go to completion and occur in both the forward and reverse directions.
The energy barrier that must be overcome during a collision of two potential reactants in order for a reaction to occur.
A catalyst speeds up a reaction by providing an alternative reaction pathway that has a lower activation energy.
This is the breaking of a molecule to form two or more products using thermal energy. This makes it an endothermic process.
The exothermic oxidation of a fuel.
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