
SN2 mechanism with tertiary carbocation
Is my book misrepresenting this SN2 mechanism because it's showing a nucleophile attacking a 3° (tertiary) carbon? I thought that nucleophiles cannot attack tertiary carbons because of steric hinderance?

Is my book misrepresenting this SN2 mechanism because it's showing a nucleophile attacking a 3° (tertiary) carbon? I thought that nucleophiles cannot attack tertiary carbons because of steric hinderance?
My book is saying that this reaction is neither an SN1 or SN2 reaction without giving any explanation or context. What makes this neither?
I've been trying to reason through the following:
So apparently my book is saying that the Bromide ion is a better leaving group than the -OT (tosylate) sulfonate ion.
I thought that sulfonate ions are typically more stable conjugate bases because of potential resonance structure. Can someone explain why the bromide ion is more stable in this case?
I'm getting some mixed answers for when to use prefixes to denote the location of E/Z and r/S.
Can someone explain when I would use prefixes to denote the location of the E/Z and r/S?
I know it has to do with when there is more than 1 double bond or stereocenter, but I'm not sure if this rule is consistent across both E/Z and r/S.
For example, is my book correct in using the prefixes even though there is only one of each?
I am taking Physics 8A this coming fall with Na Ji. I have no prior physics experience, having never taken it in high school.
How is this class without any prior knowledge?
Also, how are the labs for this course? I haven't seen anyone talking about it online.
Why is this cis, not trans? I can see how someone might get confused as to what it is, but what I am specifically looking for when looking at the positioning of the atoms/groups?
Originally, I thought it was trans because I was looking at the parent chain and saw that both sides of the carbon end up on different sides of the double bond.
Edit: wow, isn't this a hot topic
I see community college as a good opportunity for high schoolers to earn college credits while also having the opportunity to take some interesting classes. Why aren't there more high schoolers taking these classes, even during the semester along with high school classes?
Can someone explain why the ethoxide* is listed to have two hydrogens attached to the middle carbon, rather than it being H3C like the others?
*edit: tert-butoxide changed to ethoxide
How would I know to draw the boxed resonance structure? I only thought to draw the other 4, because wouldn't it be natural for the nitrogen to retain the lone pairs because of its electronegativity? Also, why doesn't the oxygen also become negatively charged?
Do my resonance structures also work or do they have to be in this specific order laid out by the book? And why?
Does it matter how you draw your arrows when using curved arrows for resonance? For example, in this problem, I started the tails of my arrows in different places from the textbook's answer. Does either way suffice, or is it more "stable" or realistic to use the textbook's answer and why? Should you always choose the shortest path for arrows?
How important is it for bond-line notation to be drawn in a specific way? I'm working through David Klein's Organic Chemistry as a Second Language book and the textbook answers seem to be different from what I would intuitively draw as the answer. Would either way be correct? I imagine there are many ways to draw the same molecule.
Edit: Thanks so much for all the responses, they are very helpful!
I'm thinking about taking Public Health 142 this summer online with Mi Suk Kang Dufour. How is this teacher, and how doable is the course in the summer if someone has zero experience with statistics or R? She's rated a 2.3 on RMP, so kinda worried about why she's not rated well.
Is this a recommended stats class for premed, or am I better off taking something like stats 2, 20, etc?
TIA