Why is this not achiral? I only see three diff substituents

I underand the lef has resonance, so more stable= weaker base right? So the right side is more basic? Is that correct? Or do I need to like protonate to turn it into a base? Idk how to approach

For question 20, I thought structure A would have the greatest dipole dipole moment as O is more electronegative and there’s two of them, compared to D where there’s only one O and a N. Why am I wrong

I don't see how the ethoxide catalyzes this reaction. The only thing that comes to mind is if it deprotonates the amino groups but it can't do that due to the difference in Pk

Hi :)

I had something odd happen and I was wondering if anyone has an explanation I used this product fine for a long time on my hair (my hair touches my face) anyway I decided as I couldn’t use tap water long story I had some deionised water and used that to put it on my hair and then was gonna walk 30 mins to the gym in that time I got severe contact dermatitis from it and the product still wouldn’t wash out properly and irritating me? Does anyone know if I’m allergic to the product and this just made it work better as no hard water or whether I accidentally changed the formulation? Even somehow my eyelids blistered eyelashes fell out whole face burning this happened pretty instantly before one time when I combined a product with deionised so idk and the deionised is fine on its own

Is the structure on the right a better contributer because of aromaticty being present?

In lab, we are determining the type of inhibition D-Phe and L-Phe will have on Alkaline Phosphatase. Now, I believe the enzyme is an L-stereoisomer so D-Phe will show no inhibition. Still, I'm confused as to why my Dixon plot looks like this. I feel like I messed up the fixed time assay. Please, let me know how these look to you. (they are NOT finished; I made them 5 mins ago).

I know that both s's have to be bonded together and that the formal chargers have to be minimized, but I have tried various different ways but I still keep getting it wrong. Any solutions for the issue?

I understand how u can draw out and cancel vectors to determine polarity but I’m so confused on how dro do this when there are multiple central atoms? Ik u look at them differently and be like ok this part is polar but idk what else since if one part is polar cant the whole molecule still be polar?

can someine ezplain statemnt 2 as if im an amateur

Hello! Could someone halp me? Are these right lewis structure, mesomeric and inductive effect, resonance structure?

I understand that during a flip axial becomes equatorial. How do I know which one is a flip? Are these not both equatorial and therefore both equally stable?

I was looking at it today. He has a patreon where you can subscribe for practice problems, practice exams, a bunch of helpful stuff.

The problem is how incredibly expensive it is. Because of how much stuff that it comes with (as he does calculus, physics, trig, stats, you get my point.

I am a poor college student. I struggle really heavily with math and science because of a lack of any good math and science classes in high school. I'm planning to take college algebra next semester instead of jumping right into chem 2.

Anyways, I have found his videos so helpful. I feel like I actually get the concepts. The problem is the math. I get the math when he explains it, and then I do my homework with the stuff I remember. But I forget it easy. I figured if I have practice sets and stuff that I can work on over a few days, I'll retain it better.

Is the 50 dollars a month worth it for all the practice problems? If anyone here has used them, please tell me! (I could also try to convince my mom to pay part of it cause she's amazing and cares for my wellbeing and knows I'm struggling)

I got started on this one, and I just kind of quit because I didn't know what to do next. We've done reaction mechanisms before, but I think this one is combining more than one and it's just so overwhelming to deal with? Any tips?

Some people said 2, some said 4.

Can someone explain to me what carbon bonds we are looking down on this picture?

How do we write the condensed electron configuration for elements that exist in F block?

Im very confused looking at the periodic table as im not sure what comes before it.

E.g. Uranium
I wrote [Rn] 7s2,6d3 at first but its wrong

E.g.: plutnoium, einsteinium

Is there a method to do this?

(Newman structure is drawn because page got cut off) The correct answer is the one circled in red. Mine is the one in purple. Am I missing something? Is it just because it’s 3D and im confusing myself? I got all other questions right except this one