your text$)$ for the compound on the right, looking down the bond

from the cow's perspective. Assume that the $0$ starting point is the

conformation shown, and show structures at $60$ intervals as

Newman projections. Only relative energy positions are necessary.

$($You may abbreviate $CH(C{H}_3{)}_2$ as iPr.$)$

Which two structures represent the same compound?

Give the relationship between each pair of structures below $($different conformations of the same molecule,

constitutional isomers, or molecules with different formulas$).$ If they are the same molecule, state whether the

conformations shown have the same or different energy.

The following Br$$nsted acid$-$base reactions are all incomplete. Supply the missing curved arrows and$/$or line

structures for products or reactants in each case. Use the table of $p{K}_a$ values $($and which will

also be provided on exams$)$ to determine whether the equilibrium favors reactants or products. In each case you

should show the most favorable possible acid$-$base reaction between the two reactants.