Methyl formate - Study guides, Class notes & Summaries

Technicians who perform sealed system service on small appliances must have; - Answer- Type I or universal certification A small appliance is defined by EPA as; - Answer- Appliances manufactured, charged, and hermetically sealed in a factory with 5 lbs or less of refrigerant Type I Certification is required for; - Answer- Persons handling refrigerant during maintenance, service, or repair of small appliances. If regulations change after the technician becomes certified; - Answer- The te...

©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/11 Recovery equipment manufactured after November 15, 1993 must be capable of recovering; - ANSWER-90% refrigerant or or achieving 4 inches of vacuum. Recovering multiple types of refrigerants in the same cylinder; - ANSWER-will make the reclaimed refrigerants non reclaimable and a charge for disposal may be levied. Self-contained or active recovery equipment; - ANSWER-Has its own means of recovery. ...

CHEM 104 EXAM QUESTIONS AND ANSWERS 100% COMPLETE TEST SOLUTIONS A+ GRADED Tertiary alcohols cannot be oxidized because ________. Select one: A. there are no hydrogen atoms attached to the alcohol carbon B. the alcohol carbon is too electronegative to have hydrogen removed from it C. the alcohol carbon is bonded to four groups so no hydrogen can be added to it D. there are no oxygen atoms to remove from the alcohol carbon E. the alcohol carbon is bonded to ...

1. Which of the following statements about the fixation of atmospheric nitrogen (N2) into NH3 by living cells is false? A) It involves the transfer of eight electrons per mol of N2. B) It occurs in certain microorganisms, but not in humans. C) It requires a source of electrons, normally ferredoxin. D) It requires one ATP per mol of N2 fixed. E) It requires two key protein components, each containing iron. D 2. Which of the following is not true about the anammox reaction? A) An...

HVAC: EPA 608 Certification Study Guide Questions and Answers, latest updated 2023 Are there drop-in replacements for R-12 systems? Why or why not? No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and what oils will it mix with? Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? Alkylbenzene lubricant What is difference b/w ternary blend a az...

Organic Chemistry, 6e (Smith) Chapter 1 Structure and Bonding 1) What is the ground-state electronic configuration of a carbon atom? A) 1s2, 2s2, 2p5 B) 1s2, 2s2, 2p2 C) 1s2, 2s2, 2p6 D) 1s2, 2s2, 2p4 Answer: B Difficulty: 1 Easy Section: 01.01 Topic: Structure and Bonding Bloom's: 2. Understand Chapter: 01 Accessibility: Keyboard Navigation 2) What is the ground-state electronic configuration of a fluorine atom? A) 1s2, 2s2, 2p2 B) 1s2, 2s2, 2p3 C) 1s2, 2s2, 2p4 D) 1s2, 2s2, 2p5 Ans...

EPA 608 Type I from practice test questions and answers rated A Technicians who perform sealed system service on small appliances must have; Type I or universal certification A small appliance is defined by EPA as; Appliances manufactured, charged, and hermetically sealed in a factory with 5 lbs or less of refrigerant Type I Certification is required for; Persons handling refrigerant during maintenance, service, or repair of small appliances. If regulations change after the technician becomes...

Are there drop-in replacements for R-12 systems? Why or why not? - Correct answerNo because the new refrigerants are incompatible with the oils and lubricants used in R12 systems. What type of oil is used in R-134a and what oils will it mix with? - Correct answer-Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - Correct answer-Alkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? - Correct answer-Ternary blends are th...

HVAC: EPA 608 Certification Study Guide, Top Exam Questions and answers, rated A Are there drop-in replacements for R-12 systems? Why or why not? - -No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and what oils will it mix with? - -Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - -Alkylbenzene lubricant What is difference b/w ternary blend a azeotr...

Package Title: Solomons Test Bank Course Title: Solomons 11e Chapter Number: 17 Question type: Multiple choice 1) Which of the following is the best name for the following compound? O O a) Isobutyl ethanoate b) Ethyl isopropanoate c) 3-methylbutyl ethanoate d) Ethoxy isobutyl ketone e) Ethyl 3-methylbutanoate Answer: E Topic: Nomenclature Section: 17.2 Difficulty Level: Medium 2) The correct structure for ethyl 3-methylbutanoate is: O O O O O O O O O O I II III IV V a) I b) II c) III d) IV e) V ...