Hydrogen bonds Study guides, Class notes & Summaries

The attractions between atoms within a molecule of NH3 are best characterized as A. hydrogen bonds B. ionic bonds C. polar covalent bonds D. London (dispersion) forces E. ion-dipole forces Correct Answer-polar covalent bonds R(g) + 2T(g) ⇌ 2X(g) + Z(g) The reaction mixture above is at equilibrium at 298 K. The value of the equilibrium constant for the reaction is 16 at 298K. If R(g) , X(g) and Z(g) each have an equilibrium concentration of 2.0 M, what is the equilibrium concentrati...

PATHOPHYSIOLOGY 9TH EDITION MCCANCE TEST BANK 2023. Chapter 1: Cellular Biology MULTIPLE CHOICE 1. Which statement best describes the cellular function of metabolic absorption? a. Cells can produce proteins. c. Cells can take in and use nutrients. b. Cells can secrete digestive enzymes. d. Cells can synthesize fats. ANS: C In metabolic absorption, all cells take in and use nutrients and other substances from their surroundings. The remaining options are not inclusive in their description...

Soft Water/ Rain water - Answer- Best for shampooing and allows shampoo to lather freely Hard Water - Answer- Minerals that lessen the ability of the shampoo to lather Purified water/Deionized water - Answer- Main ingredient in shampoo Surfactant - Answer- has two ends the HYDROPHILIC HEAD and LIPOPHILIC TAIL Hydrophilic Head - Answer- Attracted to water Lipophilic Tail - Answer- Attracted to dirts and oils Acid Balanced Shampoo - Answer- pH of 4.5-5.5 Jheri Redding - Answer...

Portage Learning: Microbiology Final Exam Set Already Passed Microbiology is the study of what? Microbiology is the study of microbes (microorganisms and viruses) and their biological processes. What is the smallest biological unit of life? A cell What is a macromolecule? A macromolecule is classified as a complex molecule that is composed from smaller subunits. What are the four main types of macromolecules? Proteins, nucleic acids, lipids and carbohydrates What various functions do protein...

ACS BIOCHEMISTRY EXAM QUESTION WITH COMPLETE SOLUTIONS LATEST 2024. Henderson-Hasselbach Equation - CORRECT ANSWER - pH = pKa + log ([A-] / [HA]) FMOC Chemical Synthesis - CORRECT ANSWER - Used in synthesis of a growing amino acid chain to a polystyrene bead. FMOC is used as a protecting group on the Nterminus. Salting Out (Purification) - CORRECT ANSWER - Changes soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. ...

BLG1501 Assignment 2 Semester 1 2024 (Solutions) Question 1 Not yet answered Marked out of 2.00 Flag question Question text Hydrolysis is reaction which occurs when Select one: a. a bond of a polymer is broken down through the addition of water molecule. b. two molecules are covalently bonded to each other through the loss of water. c. a double bond is formed between two atoms. d. a triple bond is formed between two atoms. Clear my choice Question 2 Not yet answered Marked o...

The most common isotope of hydrogen has one proton, no neutrons, and one electron. An isotope of hydrogen with 1 neutron would have: - Answer- an atomic number of 1 and a mass number of 2 In a covalent bond: - Answer- electrons are shared between atoms so that all atoms have full outer shells A property of a system that is present at one level of organization but absent at the levels below is called: - Answer- an emergent property An ionic bond is - Answer- weaker than a covalent bond ...

Central Dogma - correct answerDNA-(Transcription) - RNA- (Translation) -Protein DNA Structure - correct answer1. Deoxyribose: 5 Carbon atoms are numbered 1' to 5' . Hydrogen attached to 2'. Sugar 2. Phosphate group Sugar-Phosphate backbone is asymmetric because PO4 groups connect the C5' of a sugar with the C3' of neighbouring sugar. = Asymmetric ends because the C5' end is attached to a PO4 and the C3' end is simply a hydroxyl group of the sugar. 3. Nucleic Acid: No-covalently bon...

TABLE OF CONTENTS PART ONE: CENTRAL CONCEPTS OF PATHOPHYSIOLOGY: CELLS AND TISSUES Unit I: The Cell 1. Cellular Biology 2. Altered Cellular and Tissue Biology 3. The Cellular Environment: Fluids and Electrolytes, Acids and Bases Unit II: Genes and Gene-Environment Interaction 4. Genes and Genetic Diseases 5. Genes, Environment-Lifestyle, and Common Diseases 6. Epigenetics and Disease Unit III: Mechanisms of Self-Defense 7. Innate Immunity: Inflammation 8. Adaptive Immunity 9. Alter...

BCH4024 Exam 1 Purich Questions & Answers 2023/2024 Basic Structure of water - ANSWER--large dipole moment -very polar that interactions between H2O molecules are strong--high heat capacity -liquid water=H-bonds are relentlessly made and broken; thus a flickering collection of W5 structures, with extremely little W1 -each water molecule can form up to 4 H-bonds -liquid water has 3.4 H-bonds on average -ice has 4 H-bonds H-bond - ANSWER-stable interaction occurring when 2 EN atoms shar...