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15 cards from this deck
Energy cannot be created or destroyed, only transferred
The chemical reaction being studied
Everything outside the reaction (container, environment)
Reactants have more energy than products
Temperature goes up
Combustion and neutralisation
Products have more energy than reactants
Temperature goes down
Photosynthesis and thermal decomposition
Energy stored within a chemical bond
Energy is released to the surroundings
Energy is absorbed from the surroundings
Energy change = Bonds broken - Bonds made
Exothermic reaction (energy released)
Endothermic reaction (energy absorbed)
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