Ethanol is what - Study guides, Class notes & Summaries

AAMC MCAT Practice Exam 1 Questions and Answers 2024 In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A) Hydrogen bonding B) Solute concentration C) Stationary phase concentration D) Thickness of paper -Answer-A) Hydrogen bonding The answer to this question is A because the relative amount of hydrogen bonding to the stationary phas...

ACS General Chemistry 2 Final Exam Study Guide |2024 Release| C Where is the hydrophilic (attracted to water) region of the molecule? (A) Region 1 (B) Region 2 (C) Region 3 (D) The three regions are equally hydrophilic C Which molecule is most soluble in water? D A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? Molar Mass NaCl = 58.44 g/mol (A) 0.205 m (B) 0.258 m (C) 3.51 m (D) 4.41 m B What is the mole fract...

Question 1 Correct 4.17 points out of 4.17 The best defense against arboviruses is . Select one: a. prophylactic rifampin b. vaccination c. vector control d. prompt treatment with acyclovir Question 2 Correct 4.17 points out of 4.17 Meningitis can be caused by a number of microbes, and the causative organism is often identified by microscopic observation of the cerebrospinal fluid. Identify the mismatch in the following list oforganisms and the description of the microscopic obse...

As the density of a material increases, what happens to the API Gravity? a) It becomes higher b) It becomes lower c) It does not change d) Answers a., b. and c. are all wrong - b) It becomes lower Density of any substance is the ratio of its mass to its volume, usually at a specified temperature. Relative Density is the ratio of the density of a substance at a specified temperature to the density of what other substance? a) Pure ethanol at the specified temperature b) Acetone at the spe...

Course Objectives: Cultivation of samples: growth conditions and equipment used Identification of samples: biochemical assays & tests available Evaluation of samples: microscopy- visualization and key characteristics of specimens Basic Equipment: Cleaning: Autoclave 125°C- uses heat, pressure, & steam to sterilize; autoclave will take minutes to sterilize & hot dry air which will take hours; before opening make sure it is depressurized and will have very hot air. Growing (bacteria/patho...

Chapter 01 - Structure and Bonding 1. Give the ground-state electron configuration for carbon (atomic number 6). 1s22s22px12py1 or 1s22s22p2 2. Give the ground-state electron configuration for fluorine (atomic number 9). ANSWER: POINTS: 1 1s22s22px2 2py2 2pz1 or 1s22s22p5 3. Give the ground-state electron configuration for magnesium (atomic number 12). 1s22s22p63s2 4. How many electrons does silicon have in its valence shell? ANSWER: four POINTS: 1 Exhibit 1-1 Write valid Lewis (elec...

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Version: 1.0 Final *JUN* IB/M/Jun23/E6 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 Section B TOTAL Tuesday 23 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instruction...

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Sake WSET Level 1 (2023/2024) Graded A Japanese name for basic sake Futsu-shu Color(s), abv, flavors futsu-shu Colorless, pale yellow or green. 15-17%. Slightly sweet, lightly acidic, delicate lactic and fruity flavors Two big aroma categories of Sake Floral/fruity and cereal/lactic Daiginjō meaning 'Big' ginjō Junmai meaning 'Pure rice'; No alcohol added Two grades of premium sake that have more cereal/lactic aromas, higher acidity and more umami. Junmai, honjōzō What is responsib...

Exam #4 (100 points) – Version A This is a closed-book examination. Collaboration, of the use of books, notes, of handouts, is not allowed. Please turn off and put away all cell phones, pagers, and other electronic devices. If you finish the exam early, you may leave the room quietly. This exam consists of 50 multiple choice questions. Select the best answer to each question and enter your answer on a pink Scantron form. Be sure to indicate on the Scantron form whether you have version A ...