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Unformatted text preview: is bonded to, the stronger the acid 5. C-H < N-H < O-H 6. Size of atom carrying - charge (H-Cl, H-Br) Electronegativity values H 2.1 C 2.5 N 3.0 O 3.5 F 4.0 Cl 3.0 Br 2.8 B. Resonance Effect 1. The more stable the A^-, the more acidic the compound. 2. Resonance stabilization of A; by the delocalization of charge. 2.4 Predicting the Direction of Acid-Base Reactions A. The position of equilibrium favors the reaction between the stronger acid with the stronger base B. The position of equilibrium is determined by identifying the stronger acid or stronger base C. pKa values can be used to determine whether the position of equilibrium lies to the right or left 2.5 Lewis Acids and Bases A. Lewis acid: any molecule that can form a new covalent bond by accepting a pair of electrons B. Lewis base : any molecule that can form a new covalent bond by donating a pair of electrons On quizz! ^^^...
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