Sigma bonds Study guides, Class notes & Summaries

ACS General Chemistry 1 studysheet Exam 124 Questions with Verified Answers 56=Mass # (A) 26= Atomic # (Z) Fe= symbol - CORRECT ANSWER 56= 26= Fe= Mass Number - CORRECT ANSWER Proton+ Neutrons Atomic Number - CORRECT ANSWER # of protons/electrons (equal in elemental form) - superscript - CORRECT ANSWER Add e- + superscript - CORRECT ANSWER subtract e- Isotope - CORRECT ANSWER Diff number of neutrons Isomer - CORRECT ANSWER two or more compounds with the same # of elemen...

Central Dogma - theory that states that, in cells, information only flows from DNA to RNA to proteins what enzyme is used to transcribe DNA and describe the process - RNA polymerase attaches to specific promoter regions its these promoter regions which identifies the starting point, describe the DNA and RNA directionality and how the direction followed by RNA polymerase - the 5' end has the 5'phosphate on a nucleotide the other end is the 3' OH group of a nucleotide -traditionally rea...

Delta Sigma Theta Interview Study Prep 100% Pass Delta Sigma Theta Sorority Inc., was founded when & where? January 13, 1913 on the campus of Howard University in Washington, DC How many founders were there? 22 Founders: 1. OSCEOLA MACARTHY ADAMS 2. MARGUERITE YOUNG ALEXANDER 3. WINONA CARGILE ALEXANDER 4. ETHEL CUFF BLACK 5. BERTHA PITTS CAMPBELL 6. ZEPHYR CHISOM CARTER 7. EDNA BROWN COLEMAN 8. JESSIE MCGUIRE DENT 9. FREDERICA CHASE DODD 10. MYRA DAVIS HEMMINGS 11. OLIVE C. JONES 12. JIMMIE BU...

_______ use an internal RNA primer so that the end of the eukaryotic chromosome can be replicated. a. Primases b. RNA polymerases c. Telomerases d. DNA polymerases e. Helicases c. Telomerases A transmembrane sensor kinase protein senses an environmental condition outside __________ bacteria or in the periplasm of a/an __________ bacteria. a. Gram-positive; Gram-negative b. Gram-negative; Gram-positive c. prokaryotic; eukaryotic d. prokaryotic; archaean e. Gram-positive; aci...

When naming carboxylic acids correct answers find the longest continuous carbon atom chain contianing the carboxylic acid group What is the prefix in carboxylic acids? correct answers -oate To name an ester, correct answers identify the alkyl group that is in the 'alcohol' portion of the molecule and name it; then identify the acid part of the molecule. The ester is named with the alkyl part first, and the acid part is named as a carboxylate. The terms ortho, meta, and para are used w...

Chapter 13 Practice Exam 42 Questions with Verified Answers Which of the following is a type of RNA that gets translated? A) rRNA B) mRNA C) tRNA D) miRNA E) A, B, and C all get translated. - CORRECT ANSWER B Which of the following RNA molecules are required for the process of translation? A) crRNA B) tRNA C) snRNA D) snoRNA E) siRNA - CORRECT ANSWER B Over time, DNA replaced RNA as the primary carrier of genetic information, and the chemical stability of DNA is believed to be...

Chapter 01 - Structure and Bonding 1. Give the ground-state electron configuration for carbon (atomic number 6). ANSWER: 1s 2 2s 2 2px 1 2py 1 or 1s 2 2s 2 2p 2 POINTS: 1 2. Give the ground-state electron configuration for fluorine (atomic number 9). ANSWER: 1s 2 2s 2 2px 2 2py 2 2pz 1 or 1s 2 2s 2 2p 5 POINTS: 1 3. Give the ground-state electron configuration for magnesium (atomic number 12). ANSWER: 1s 2 2s 2 2p 6 3s 2 POINTS: 1 4. How many electron...

Hydrocarbons correct answer: contain only carbon and hydrogen Alkanes correct answer: single bonds, saturated, sp3 hybrid, tetrahedral, 109.5 deg, sigma bonds only, free rotation about C Alkenes correct answer: double bonds, unsaturated, sp2 hybrid, trigonal planar, flat, rigid about C, pi bond, polyunsaturated:many double bonds Alkynes correct answer: triple bonds, unsaturated, sp hybrid, linear Aromatic correct answer: benzene ring, unsaturated Structural Formula correct an...

what factors explain the outcomes of reactions? hybridization, delocalization, eN, atom density what is a leaving group? - group of atom(s) that can be stable on its own - eN atoms that are good LG also make strong acids what is the α carbon? C directly attached to leaving group what are β Cs? β Hs? βC: C(s) attached to α carbon βH: H(s) attached to βC what is a LB? is it a nucleophile or electrophile? lewis base, nucleophile what is nucleophilic ...

OCR A LEVEL ORGANIC CHEMISTRY YEAR 12 WITH VERIFIED QUESTIONS AND ANSWERS What is the melting and boiling points of alkanes like? - ANSWER--as chain length increases so does the strength of the intermolecular forces as there is greater surface area for contact between molecules and hence stronger london forces and therefore the melting/boiling points are highr for longer chain. What is a structura/chain isomer? - ANSWER--Same molecular formula but a different structural formula Wh...