Van der waals - Study guides, Class notes & Summaries
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biochemistry 1430 for nurses Midterm Review || Questions and 100% Verified Answers.
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4 key biomolecules of life correct answers proteins, nucleic acids, lipids, and carbohydrates 
 
weak bonds correct answers hydrogen bonds and van der Waals interactions. allow for dynamic interactions and permit energy and information to move about the cell and organism 
 
hydrophobic molecules correct answers fats and steroids in which they repel water, they cannot interact with water at all. 
 
Brownian motion correct answers the chaotic movement of colloidal particles, caused by collision wi...
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IB Chemistry SL: Topic 4 Latest Version Graded A
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IB Chemistry SL: Topic 4 Latest Version 
 
Graded A 
 
Ionic Bond Electrostatic attraction between oppositely charged ions 
 
Covalent Bond Electrostatic attraction between a pair of electrons and positively charged 
nuclei, formed as a result of electron sharing 
 
Metallic Bond Electrostatic attraction between a lattice of positive ions and delocalized 
electrons 
 
Polyatomic ions ions with more than one element 
 
e.g. CaCO3, Al(OH)3, Mg(NO3)2, (NH4)2SO4, Ba3PO4, LiHCO3 
 
Lattice ions arran...
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Bios 1300 Cumulative Final Questions and Answers Rated A+
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Bios 1300 Cumulative Final Questions and Answers Rated A+ 
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 functio...
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Bios 1300 Cumulative Final (with Complete Solutions)
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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 correct answers 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 correct answers greater the number of H+ in solution 
 
Which functional group is made of ...
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Bios 1300 Cumulative Final Exam |214| Questions With Complete Solution
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Bios 1300 Cumulative Final Exam |214| Questions With Complete Solution 
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 ANS-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 ANS-greater the number of H+ i...
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BIO 116 Exam Review questions with correct answers
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Which of the following lists some of the levels of biological organization from less complex to more complex? Answer atoms, molecules, cells, organs 
 
What are isotopes? Answer two atoms of an element that have same number of protons but different numbers of neutrons 
 
What are valence electrons and why are they important? Answer Valence electrons are the electrons in the outermost orbital of an atom that can participate in bonding 
 
What are covalent bonds? Answer electrons shared between at...
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Bios 1300 Cumulative Final Exam Questions with Correct Answers
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Bios 1300 Cumulative Final Exam Questions with 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 - Answer-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 - Answer-greater the number of H...
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BCH 403 Exam 1 Questions with Complete Solutions
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(T/F) A biochemical reaction, without a catalyst or thermodynamic coupling, takes 50 years to reach a state of equilibrium. Without more information, we cannot make a determination on either the value of the Keq constant or the positive or negative value of the ΔG of the reaction. Correct Answer-False 
 
(T/F) Due to its small size, the amino acid glycine can be found in tight turns in a protein structure. Correct Answer-True 
 
(T/F) The ΔG of a reaction is defined as the energy required to b...
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BCH 403 Lecture 4 Questions with Complete Solutions
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how are H bonds formed in beta sheets? Correct Answer-- between strands 
- H-bonds are lateral 
 
why do proteins fold if it would lower entropy? Correct Answer-- the hydrophobic effect 
- deltaH --> all of the interactions happening w/in the protein are favorable + overcome the unfavorable entropy of folding 
 
what types of interactions stabilize 3* structures? Correct Answer-- H-bonds 
- ion pair / salt bridges 
- van der Waals interactions: weak electrostatic interactions b/t induced dipo...
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AS-Level Chemistry :Paper 1 2024 latest update graded a+
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AS-Level Chemistry :Paper 1 2024 
latest update graded a+ 
Arranged in periods (rows) and groups (columns) by atomic (proton) 
number - CORRECT ANSWER-How is the periodic table arranged 
Have the same number of electrons shells, even if they are not all 
parts of the s or p sub-shells - CORRECT ANSWER-All elements 
within a period ... 
Have the same number of electrons in their outer shell, meaning 
that they all have similar properties - CORRECT ANSWER-All 
elements within a group ... 
Periodic...
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