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- 3. How to covert the reactant to the product? Show all reagents and intermediates involved in the reaction. OEtPredict the product(s) and provide the complete mechanism for each reaction below.1. Predict the product and provide the mechanism for the following reversible nucleophilic addition. NaOH in H₂O 2. Predict the product and provide the mechanism for the following reversible nucleophilic addition. H2SO4 (cat) H EtOH