Electronic Configuration
The 4s orbital is lower in energy than the 3d orbital, and therefore you write 4s before 3d in the electronic configuration. Why, then, is the electronic configuration for Hafnium (Hf) the following?...
View ArticleA question about reaction coupling
Reaction coupling allows for: A. Addition of the equilibrium constants in a series of sequential steps to give a more spontaneous equilibrium constant. B. Generation of products that would not normally...
View ArticleDoes enzyme inhibitor change ΔG?
Phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) phosphorylates phosphatidylinositol (4,5)-bisphosphate (or PIP2) to generate the second messenger phosphatidylinositol (3,4,5)-trisphosphate...
View ArticleMCAT CARS
Hi guys, So I'm currently studying for my exam in 3 weeks on April 28th. However, I've noticed something a bit weird... Historically, CARS has been one of my higher scoring subjects. For my previous...
View ArticleTBR OChem - Alcohol Vs. COOH
13. Which of the following would be the BEST solvent to remove an ink dye that has hydroxyl (OH) groups attached to a carbon backbone? A. propanone b. propanol c. propanal d. propanoic acid I get that...
View ArticleFor those who used NS for January 2017 MCAT
For those of you who used next step practice exams for a recent mcat and have gotten your score back, I was hoping for some feedback on how your actual score compared to your NS practice exam scores. I...
View ArticleWhy is guanidine more basic than methylamine?
I was going through the EK Chemistry lesson, and they explained that Guanidine HNC(NH2)2 is a stronger base than methylamine, CH3NH2. I am confused by this because I assumed that the least stable...
View ArticleSection bank P/S #2
"Verbal information from the left ear which first go to the auditory cortex in the right hemisphere must be processed by the language areas of the left hemisphere" The statement in bold doesn't make...
View ArticleAAMC section bank P/S #78
Why is D incorrect? I feel like B is too general and doesn't refer to the SG hypothesis Thanks a lot! @aldol16 @5words
View ArticleQuestion about ATP thermodynamics
There is a question in the BR bio II book in chapter VII, passage XI. It asks, "Based on the data in tble 1, which of the following compounds can be phosphorylated exergonically by ATP?" I don't know...
View Articlenext step verbal
@NextStepTutor_1 can someone please help me with this CARS passage rom nxt step. it come from section IV. the passage on poetry. i don't get this pasage- got them all wrong. can someone explain...
View Articleberkley review biology questions. pre 2015 (old versions)
in their explanation they say. the red colored stain is added so the gram negative bacteria can be visualized. the purple colored bacteria also pick up on the red and are now blue. I've never learned...
View ArticleOrganic - Separation of Charge?
"Resonance contributors that minimize separation of charge are better than those with a large separation of charge". Q: What do they mean by separation of charge? I'm very confused.
View ArticleWhy is the work negative in this KA practice problem?
See screenshot for the problem. If the plaque were to slide a distance D to the right, what could be said about the work done on the clot by the lower pressure blood on the right side of the clot? The...
View ArticleCognitive therapy
I don't really see why C wouldn't be an option here. I think C would be just as effective in changing your thoughts about the situation View attachment 217725
View ArticlePrimacy vs recency effect
Is the primacy effect stronger than the recency effect? A kaplan passage based online question seems to suggest that View attachment 217723
View ArticleHPLC, Reverse Phase HPLC, and ELISA
Hey, I need to make sure I understand these techniques can someone help me. HPLC (normal) = the mobile phase runs through the stationary phase and if the compound is more like the stationary phase it...
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AAMC FL1 C/P #16
So after reading over the passage again, I can see how D is a stronger answer than A, since it says that the oxygen levels affect the number of photons emitted. But just in general, can't the...
View ArticleChem AAMC PASSAGE 8
Passage 8. Can some explain to me why we are even using non-biotinyated substrate since it does allow for us to see the methylation even if it is occurring? I guess I not really understanding why we...
View ArticleAAMC Section Bank Question
Hi I am having trouble with these following question A description of the structures of four proteins is shown bellow Protein Description Protein 1 32 kDa monomer Protein 2 Disulfide-linked homodimer...
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