Van der waals - Study guides, Class notes & Summaries
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Bios 1300 Cumulative Final UPDATED Exam Questions and CORRECT Answers
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Bios 1300 Cumulative Final UPDATED 
Exam Questions and CORRECT Answers 
Which of the following bond types is the weakest? 
Isotopic bonds 
Van der Waals forces 
Hydrogen bonds 
Ionic bonds 
Nonpolar covalent bonds 
Polar covalent bonds - Correct Answer- Van der Waals forces
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Biochemistry 200 (midterm) || with 100% Verified Solutions.
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Polysaccharides (saccharides are carbohydrates) correct answers Polymer of monosaccharides 
 
Peptide bond correct answers Bond between amino acid residues to form a polypeptide chain. (Amide linkage) 
 
Phosphodiester bond correct answers Bond that connects nucleotides together to form nucleic acids 
 
Glycosidic bond correct answers Any bond that links a sugar to something else 
 
Hydrogen bond donor correct answers A hydrogen bonded to an electronegative atom 
 
Hydrogen bond acceptor correct...
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Biochemistry 1430 midterm (All Questions Answered Correctly)
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Typical Van der Waals energies are about: correct answers 2-4 kJ/mol 
 
A possible drug to treat COVID-19 has been discovered and is known to be a weak acid. At the pH of blood (7.4) the concentrations of acid and conjugate base are 0.075 and 0.025 respectively. What is its pKa? correct answers 3.00 
 
What is the [A-]/[HA] ratio whent he weak acid is in solution alone pH unit above its pKa? correct answers 10:1 
 
What are the primary chemical components present in a phosphate buffer at pH 7.4?...
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BIOS 1300 Cumulative Final | Questions with 100% Correct Answers | Verified | Latest Update 2024 | 45 Pages
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Which of the following bond types is the weakest? 
Isotopic bonds 
Van der Waals forces 
Hydrogen bonds 
Ionic bonds 
Nonpolar covalent bonds 
Polar covalent bonds - Van der Waals forces 
The lower the pH of a solution, the ________. 
lower the H+ concentration 
more neutral the solution is 
greater the number of oxygen atoms 
greater the number of H+ in solution 
less toxic the solution is - greater the number of H+ in solution 
Which functional group is made of one N atom and two H atoms? 
pho...
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BCH 403 Final Exam Questions with Complete Solutions
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T or F: A biochemical reaction, without a catalyst or thermodynamic coupling, takes 50 years to reach a state of equilibrium. W/o more information, we cannot make a determination on either the value of the Keq constant or the positive or negative value of the DeltaG of the reaction Correct Answer-False 
 
T or F: Due to its small size, the amino acid glycine can be found in tight turns in a protein structure Correct Answer-True 
 
T or F: The Delta G of a reaction is defined as the energy requir...
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Immunology Final Exam (2024) || Questions & Answers (100% Verified)
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Immunology Final Exam (2024) || Questions & Answers (100% Verified) 
Immunology Final Exam (2024) || Questions & Answers (100% Verified) 
 
Which of the following is NOT apart of the Acquired Immune System? 
a. Passive Immunization 
b. Active Immunization 
c. Physiological and Chemical Barriers 
d. None of the above - ANSWER - C. Physiological and Chemical Barriers 
 
What are the characteristics of the Immune Response? 
a. Adaptive 
b. Indiscrimination between self and none-self 
c. A & B 
d. A...
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BISC 220 MIDTERM 1 USC Questions and Answers
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Valence 
Ans- number of e- in outermost shell, determines number of bonds the atom 
can form 
4 types of bonds 
Ans- covalent, ionic, hydrogen, van der waals 
Hydrogen bonding 
Ans- electrostatic attraction between partially positive hydrogen atom and a 
partially negative, highly electronegative atom 
van der Waals forces 
Ans- weak attractive/repulsive forces resulting from the movement of 
electrons, creating temporary regions of partial pos. and neg. charge 
if difference in EN between to...
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MCB: All Exam Questions and Answers 2023 with complete solution;(MCB test bank)
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MCB: All Exam Questions and Answers 2023 with complete solution;(MCB test bank) 
 
50 multiple choice questions, covering all the topics we've taught you over the course of the semester. The exam will be split into 4 sections: 1) Proteins (10 points) 2) DNA (10 points), 3) Transcription & Translation (10 points) , and 4) Energy & Metabolism (20 points). The best way to prepare for this exam is to review your old exams and focus on the "big pictures" of each lecture using the "specifics to kn...
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Barry BMS Immunology Test 1 (Questions + Answers) Verified 100% Correct!!.
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Antigen Shape to Antibody Shape - Answer-Simple = Pocket 
Large = Groove 
Complex = Extended Surface 
Type of chemical bond used with antibodies - Answer-1)Electrostatic 
2) Hydrogen bonds 
3) Van der Waals forces 
4) Hydrophobic interactions 
Cross reactivity - Answer-The biding site can accept a shape close enough in shape and get reaction 
or a stable structure 
Ex. Penicillin and other B-lactam 
Diagnostic tests for antibody/antigen - Answer-ELISA 
Lateral Flow test (pregnancy hCG) 
Immunofl...
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BTEC Applied Science Unit 1 Chemistry (Graded)
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BTEC Applied Science Unit 1 Chemistry (Graded) How many electrons can a d subshell hold? correct answer10 
Which subshells are available in the first energy level? correct answers 
Which subshells are available in the second energy level? correct answers and p 
Which subshells are available in the third energy level? correct answers, p and d 
What is Hund's rule? correct answerOrbitals must all be singly filled before they can be doubly occupied 
Which elements do not fill the 4s subshell befor...
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