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May 27, 2015

Homework Help: Chemistry

Posted by a Canadian on Monday, February 18, 2013 at 11:24pm.

Firstly, is this right?:

Exothermic reactions have a negative enthalpy change value because the enthalpy of the reactants are greater than the enthalpy of the products *since the reactants have weaker bonds.*

(especially the starred part, I'm wondering about)

If so, how come weaker bonds means higher energy/enthalpy?

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