OH2 H2 .N + 12. Which of the following are most likely the conjugate acid and base in the reaction below? IN OH

What is the nucleophile in the reaction? © Na H H-C H-C e ONa+ O CH31 O HO Nal S O CH3OH H H Na : 1 HO-C-H

Q16. Complete the following reaction sequence. Hi CH3-C-CH₂ (i) CH,MgBr H₁₂O Na metal CH,- Br (A) (B) (C) Ether

3C104 + 2B1+ 3 H₂03CIO3 + 2Bi(OH)3 For the above redox reaction, assign oxidation numbers and use them to identify the element oxidized and the element reduced. name of the element oxidized: name of the element reduced:

Draw the major product of the following reaction. 5 C HBr excess

Draw the complete electron pushing mechanism of the reaction shown below. Make sure to show all electron flow and resulting charges in the intermediates to receive full credit. Take pictures and insert it here. Br CH3OH 8 + HBr Paragraph ✓ B I U✓ A 川く == هه кл

CH21/23) [Review Topics] [References] Draw structures for the carbonyl electrophile and enolate nucleophile that react to give the aldol or enone below. O . OH O You do not have to consider stereochemistry. Draw the enolate ion in its carbanion form. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple reactants using the + sign from the drop-down menu. ChemDoodle [F Previous Nex

Which of the following species would be least soluble in water? -OH ○ Br -Br MgCl2 O w JOH

6) Circle the atom which is the most likely site to which a Lewis base would be attracted. Explain your answer. || H-C-N-H H

Which electron configuration is incorrect? 1s 2s _____ 2p 1s 2s 2p ______ 1s 2s __ __ -- 2p _↑↓ ↑↓ _1_1_ 1s 2s 2p _____ 1s 2s 2p -- _1_