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14 cards from this deck
Reaction that gives out energy to surroundings
Products have less energy than reactants
Increases
Graph showing energy changes during a reaction
Reactants higher, products lower
Combustion, oxidation, neutralisation
Heat and light
Acids reacting with alkalis
Iron powder (reacts with oxygen)
4Fe+3O2→2Fe2O34Fe + 3O_2 → 2Fe_2O_34Fe+3O2→2Fe2O3
CaO+H2O→Ca(OH)2CaO + H_2O → Ca(OH)_2CaO+H2O→Ca(OH)2
Energy hill reactants must climb to start reaction
Into the surroundings as heat
Metals reacting with oxygen
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