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3. Consider the following reaction: D2OD3O+ For the mechanism below, list all mechanistic errors, including errors and omissions of notation, and all unreasonable steps. If you judge a step as unreasonable, provide a brief justification of why you judge it unreasonable. Use structure numbers and/or step letters (shown in bold) to refer to specific errors. List your items as bullet points (one error per bullet point). Make sure you list specific errors. Do not list possible alternatives. 1 2 3 4 E 7 6 5