REACTION PROFILES + REACTION ENERGY CHANGES
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Last updated 11:19 AM on 11/12/22
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8 Terms
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When do chemical reactions occur
when reacting particles collide with each other and with sufficient energy
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What is activation energy
the minimum amount of energy that particles must have to react
3
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What do reaction profiles show
the relative energies of reactants and products, activation energy, overall energy change
4
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What occurs during a chemical reaction
energy must be supplies to break bonds in reactants, energy is released when bonds in the products are formed
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How can energy needed to break bonds/energy released when bonds are formed be calculated
bond energies
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What is the overrall energy change of the reaction
(sum of energy needed to break bonds in reactions) minus (sum of energy released when bonds in the products are formed)
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What is the difference is energy in exothermic reactions
energy released from forming new bonds is greater than energy needed to break bonds
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What is the difference is energy in endothermic reactions
energy needed to break existing bonds is greater than the energy released from forming new bonds
Note 
Flashcards (45)