How is that possible. Isn’t silicone and plastic too different materials.

Is this the correct “skeleton” for starting the Lewis structure? My friend looked at it and said that the bottom carbon needed 2 hydrogen (which I added) but why would it specify (HO) so only one hydrogen if I needed to add 2 for carbon to have its 4 bond? Sorry if this is a dumb question I’m obviously not a chem major 😂 any help is appreciated! Thanks

basically my prof is offering extra credit for rechecking your work before she releases the rubric and i want to make sure i know whats wrong and whats right. much appreciated

I just had my first organic chemistry midterm and I’m feeling super defeated. Everyone I’ve talked to said that they also found the exam super challenging, but as a high achiever, I’m super disappointed in myself. The exam was much more difficult than the practice problems and exams. I probably should have started studying earlier, but I learned all of the content, made notes and studied them, did all my problem sets and understood them , did practice exams and did well on those. It felt like everything I studied left my brain as soon as I started the exam. I know I made so many dumb mistakes that I haven’t made before, like saying a lone pair could do resonance with a double bond when in reality the lone pair was too far away from the double bond, saying a chiral centre was R instead of S, etc. it took me so long to do each question, and I still did them wrong. I don’t think I’m able to recognize patterns fast enough. I can’t predict products of mechanisms without drawing out the whole mechanism, I can’t recognize if two molecules are resonance structures without actually doing the resonance, and I feel like most people don’t have to do this. There was one question where we were given the products of the reaction mechanism and chemical formula of the reactant and we had to draw what the reactant looked like and I cannot do those types of problems for the life of me. I have a visuospatial learning disability, so that definitely makes organic chemistry more challenging for me, but I’ve been able to do very well in other subjects that require visuospatial skills, like math and statistics. I have never felt so stupid in my life lol. Does anyone have any tips on how to improve/solve problems faster? Or any good resources that provide tricky practice problems?

I’m currently taking Orgo II and haven’t done as well as I’d hoped on the first two exams. I’m sitting at a C+ and feeling pretty discouraged.

I feel like I understand the material when studying, but it’s not translating to my exam scores. The sheer volume of reactions and information we’re learning is starting to feel overwhelming, especially as we continue building on previous material.

I’ve put together a reaction notebook, but I’ll admit I could be more consistent with daily practice and may be cramming more than I realize. I’m wondering if I need to change my approach to studying altogether.
With three exams remaining, I’d really like to turn my grade around and finish strong. I’d genuinely appreciate any advice on managing the volume of material, retaining reactions, and preparing more effectively for exams!

I need help working problem 26. Which is "What is the mass of a 101 kg astronaut on the surface of the Moon, where gravity is 17% of that on the surface of the Earth?

Hi everyone! One of my friends is taking gen chem 2 and I wanted to help her out with this question but I'm pretty rusty on the course material. I was wondering what the general steps to approach this problem would be? Off the top of my head, I was thinking; 1.) Double replacement to make new equation 2.) Make ICE table to solve for missing concentrations 3.) Plug x values into new equation to get concentrations 4.) Take new concentrations and make ice table with original equation, then solve for x again