With reference to structure A, label structure B as an identical compound, a constitutional isomer, a resonance structure, or none of the above. Select the single best answer. CI O Constitutional isomer O Resonance structure O Identical compound O None of the above

Consider the three compounds shown below and then answer the question that follow: H. H H H H -C- -N- H H H H -C H- H- EN: | H H H H H H. H H Compound A Compound B Compound C Which two compounds are constitutional isomers? Compound A Compound B Compound C O O

A A c-) For each pair of resonance structures shown below (A and B), circle which resonance contributor makes a greater contribution to the resonance hybrid. Briefly explain your answer. O.. :0: B m N:

For the following acid-base reaction, predict which side of the equilibrium is favored. O Right-hand side O Left-hand side O Both are alkane protons, so neither side is favored.

Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons.

Curved arrows, lone pairs, and formal charges are missing from the attached reactions. Add curved arrows for the forward reaction and add any needed lone pairs and formal charges

Including reasonance structures, draw most stable allylic cation for both

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How many H-types do each of the following compounds have and label them. Circle the one that expected to be the most downfield.

Identify bonds made and broken and draw curved arrows that lead from one structure to the next. Next draw the resonance structure of intermediate B