Ester formation - Study guides, Class notes & Summaries

- correct answer which experience higher unit loads, gear teeth or rolling elements in bearings - correct answer gear teeth name three commonly used levels of sample bottle cleanliness - correct answer clean - fewer that 100 particles greater than 10 micron, superclean - fewer than 10 particles greater that 10 micron, ultraclean - fewer than 1 partic...

EPA 608 Certification Exam Questions and answers Ozone depletion is caused by _ in HCFC refrigerants - ANSWERS Chlorine CFCs and HCFCs _ making them capable of reaching the stratospheric ozone - ANSWERS do not dissolve in water or easily break down in the atmosphere How many ozone molecules are destroyed by one chlorine atom - ANSWERS 100,000 ozone molecules The stratospheric ozone layer protects us from _ - ANSWERS ultraviolet radiation from the sun Which health effect increases fro...

EPA 608 Exam Practice Questions 1-100 with Complete Solution Ozone depletion is caused by _ in HCFC refrigerants - -Chlorine CFCs and HCFCs _ making them capable of reaching the stratospheric ozone - - do not dissolve in water or easily break down in the atmosphere How many ozone molecules are destroyed by one chlorine atom - -100,000 ozone molecules The stratospheric ozone layer protects us from _ - -ultraviolet radiation from the sun Which health effect increases from loss of the stra...

esthetic (structure/composition-wise) and there roles. - answer1) Lipophilic (to penetrate anatomic barrier) 2) Intermediate chain (amide or ester, distinguishes area of metabolism) 3) Hydrophilic (ensures that drug will not precipitate in interstitial fluid/space) T or F: Local anesthetics are weak acids with a pKa of 7.5-9.5) - answerFALSE, LA are weak BASES with a pKa of 7.5-9.5) what determines the Non-Ionized (basic) % of anesthetic? - answer1) Tissue pH determines % of un-ionized LA...

Chapter 1: Nucleic Acids and Proteins Multiple Choice 1. DNA contains deoxyribonucleotide triphosphates joined together by what type of covalent bond? A. Aldehyde B. Ester C. Phosphodiester D. Peptide ANS: C OBJ: 1-2 2. Nucleotides in DNA consist of which of the following? A. Nitrogen base, deoxyribose, and phosphate B. Nitrogen base, ribose, and sulfur C. Carbon base, ribose, and phosphate D. Carbon base, glucose, and carboxyl ANS: A OBJ: 1-1 3. Which of the five ribose carbons...

NU624 2nd Exam Practice Questions and Answers B. Haworth projections -Aldehydes react with alcohols to form hemiacetals, and ketones react with alcohols to form hemiketals—when this intramolecular reaction occurs, the linear monosaccharide forms a cyclic structure -The cyclic structures are called Haworth projections -Lower horizontal bond in the ring is projected toward you, above the plane of the page, and the upper horizontal bond is projected away from you, behind the plane of the ...

Pharmacologic behavior (AAPD QE Prep Dr. Nelson) Exam Questions With Verified Answers What was the chronology of anesthetic discovery (starting with cocaine till now)? - answer1) Cocaine (1885) 2) Procaine (1904) 3) Lidocaine (1943) 4) Articaine (2000) What Cranial nerve do we block most frequently in dentistry? what are its branches and functions? - answer1) Cranial Nerve (V); Trigeminal Nerve 2) 3 Branches: a) V1: Opthalmic branch b) V2: Maxillary branch (Superior alveolar, etc) c...

Describe passivation - ANSWER-Passivation is the formation of a protective oxide Film on the surface reducing its chemical activity and its ability to corrode Describe the following factors and how they affect corrosion - ANSWER-Oxygen: oxygen increases the rate of corrosion temperature Temperature: corrosion usually accelerated with increasing temperature Chemical salts: increase the rate of corrosion by increasing the efficiency of the electrolyte humidity: the wetter the environment,...

Pharmacologic behavior (AAPD QE Prep Dr. Nelson) Exam Questions With Verified Answers What was the chronology of anesthetic discovery (starting with cocaine till now)? - answer1) Cocaine (1885) 2) Procaine (1904) 3) Lidocaine (1943) 4) Articaine (2000) What Cranial nerve do we block most frequently in dentistry? what are its branches and functions? - answer1) Cranial Nerve (V); Trigeminal Nerve 2) 3 Branches: a) V1: Opthalmic branch b) V2: Maxillary branch (Superior alveolar, etc) c...

Bio305 Exam Questions And Answers (Verified And Updated) Anabolic pathways usually involve ____. Answers: a. Reduction of Metabolites b. Release of PPi c. Production of ATP d Release of CO2 - answera Diffusion of compounds - e.g. ions, atoms, or molecules - down a gradient is ___ because it ___. Answers: a. Endergonic; does not involve bond formation. b. Exergonic; produces heat. c. Exergonic; increases entropy. d. Exergonic; separates like charges - answerc _____is a high energy c...