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20. 3 marks) Add charges to the following molecules where necessary c) CH3-N-H CH3H CH3 21. (2 marks) Label the reactants in these acid-base reactions as LA for Lewis Acids (electrophiles) or LB for Lewis Bases (nucleophiles). reactions. Used curved arrows to show the movement of electron pairs in the CH3-NH, CH-CH2-cl: CH-NH2-CH2-CH3 + --+ + :C1: Cl: -

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29 N-H Cn CH3 2l C13 L 0 LA ! O :ФИ L& レA

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