Enantiomers Study guides, Class notes & Summaries

Chem 219 Unit 3 Exam Questions With 100% Correct Answers Stereochemistry the study of the three-dimensional structure of molecules Stereoisomers Compounds with the same structural formula and connectivity but with a different 3D arrangement of the atoms in space. Enantiomers Stereoisomers that that are non-superimposable mirror images. Enantiomers have the same connectivity but different orientations (twist) of the four atoms or groups in 3D space. The two different forms of the chira...

TEST BANK LEHNINGER PRINCIPLES OF BIOCHEMISTRY 7 th EDITION BY NELSON ALL CHAPTERS INCLUDED LATEST UPDATE 2024. Page 1 of 648 Page 1 1.1 1. In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. 2. A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus. 3. In eukaryotes, the nucleus is e...

Biochemistry - Exam 1 Practice Questions & Answers 2023/2024 A+ In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. nucleoid A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus the nucleus In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuc...

OpenStax Microbiology Test Bank Chapter 7: Microbial Biochemistry * = Correct answer Multiple Choice 1. Which of the following is the best definition of a macronutrient? A.a trace element B. a vitamin C. an organic molecule necessary for life D. the most abundant elements found in living cells* 2. Amino groups are an important component of which of the following macromolecules? A.carbohydrates B.lipids C.nucleic acids D. proteins* 3. The building blocks of polymers are called whi...

Basicity rules correct answers -strong base: unstable/reactive (ED groups) -weak base: stable (EW groups/more EN/bigger) Chair conformation correct answers -more stable equitorial (slanted) -pointing up/pointing down=cis if both up -elimination: trans and diaxial Newman projection correct answers -gauche: substituent groups adjacent to eachother -grab middle and turn to put in plane Enantiomers correct answers -not superimposable mirror images -same besides stereochemistry Diast...

What are the steps in drawing Lewis structures? correct answer: 1. Draw skeleton, find central atom 2. Number of valence electrons 3. 2 electrons for each pair of bonded atoms 4. Total electrons - electrons put into structure = electrons left over 5. Electrons needed to fill octets 6. Electrons needed - electrons leftover = electrons in multiple bonds How to calculate formal charge? correct answer: Formal charge = valence electrons - non-bonding electrons How do you apply ...

1. In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. 2. A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus. 3. In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) nucleoplasm. E) nucleosome. 4. T...

polar Molecule with partial charges. Mixes with water. nonpolar No partial charges. Do not mix with water. electronegativity Attraction of an atom for electrons in a covalent bond. cohesion Water molecules sticking to each other. adhesion Water molecules sticking to other surfaces. solute Something dissolved in a solution. solvent Dissolving agent of a solution. isomers Same atoms but different arrangement. structural isomers Dif...

compound - correct answer combination of two or more elements Electronegativity - correct answer top right-highest bottom left-lowest nonpolar covalent bond - correct answer similar electronegativities cation - correct answer positively charged anion - correct answer negatively charged solvent - correct answer dissolving compound solute - correct answer dissolved substance hydration shell - correct answer ionic compound in aqueous solution, h2o forms shell around ions Isomers - correct ...

wedged bond : projects towards viewer dashed bond : projects away from viewer isomers : Two different molecules that have the same chemical formula conformational isomers : same molecule rotated differently around a bond structural (constitutional) isomers : compounds with same molecular formula but have different connectivity of atoms 2 | P a g e Stereoisomers : molecules that have the same structural formulas and bonding patterns but different arrangements of atoms in space t...