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1 November, 22:45

Which of the following statements regarding energy changes during a reaction are true?. 1) If the heat of reaction, ΔH, is negative, the energy of the products is higher than the energy of the reactants, and the reaction is endothermic. 2) Two or more atoms must collide, with proper orientation, with energy greater than or equal to the activation energy for a reaction to occur. 3) When the activation energy is high, the reaction rate is fast. 4) The energy of a collision between atoms or molecules must be greater than the activation energy (Ea) for bonds to be broken.

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  1. 1 November, 23:23
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    2. Two or more atoms must collide, with proper orientation, with energy greater than or equal to the activation energy for a reaction to occur
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