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- 1. what reaction and meachanism is this ? 2. Explain mechanism what happenning in each step on this picture 3. why is it says "stop" when NaOEt added ? does reaction stop there ? why does it stop ? ? what principle ?( complete the reaction with mechanism , do 1st one )Draw the major product of this reaction. Ignore inorganic byproducts and the alkoxide side product.