Chlorine fluorine carbon - Study guides, Class notes & Summaries

EPA 608 CORE EXAM TESTS COMBINED | VERIFIED TEST QUESTIONS WITH CORRECT SOLUTIONS Where is the stratosphere? - ANSWER 10 to 30 miles Where is ozone located? - ANSWER stratosphere What does ozone in the stratosphere above the earth consist of? a. Molecules containing 2 oxygen atoms b. Molecules containing 3 oxygen atoms c. Molecules containing 4 oxygen atoms d. Molecules containing 5 oxygen atoms - ANSWER b. Molecules containing 3 oxygen atoms Which of the following refrigerants ha...

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth c. Thin layer of CFC ...

Chemistry An Introduction to General, Organic, and Biological Chemistry, (Global Edition) 13e Karen Timberlake (Test Bank)Periodic Table of Elements Representative elements 114 Transition elements †Actinides 1 Group 1A 2 Group 2A 3 3B 4 4B 5 5B 6 6B 7 7B 8 9 8B 10 11 1B 12 2B *Lanthanides 111 112 1 3 4 11 12 34 35 36 2 5 6 7 8 9 10 18 52 53 54 55 56 57* 87 88 89† 109 110 (272) 1.008 6.941 9.012 22.99 24.31 39.10 40.08 44.96 47.87 ...

EPA 608 Core Test Sample Questions With 100% Correct Answers As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 - answera. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that...

Praxis Fundamental Content Knowledge (5511) Latest Update Rated A+ (air; water) pollution created mainly by industrialized nations Abraham Lincoln 16th president of the United States; helped preserve the United States by leading the defeat of the secessionist Confederacy; an outspoken opponent of the expansion of slavery. acid properties sour taste, red litmus paper result, electrolytes, reacts with metals and carbonates alternative energy sources energy sources that are altern...

EPA 608 Certification Questions With Revised Correct Answers BEST UPDATED!! What is EPA 608 Universal certification? - ANSWER Persons who maintain, service, repair, or dispose of both low and high pressure equipment, as well as appliances. What is EPA 608 Type I certification? - ANSWER Persons who maintain, service, repair, or dispose of small appliances (containing 5 pounds of refrigerant (or less). What is EPA 608 Type II certification? - ANSWER Persons who...

Biology 1201 Exam 1 Questions and Answers Already Passed About 25 of the 92 natural elements are known to be essential to life. Which four of these 25 elements make up approximately 96% of living matter? Carbon, Hydrogen, Nitrogen, Oxygen What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons? 6 Which of these refers to atoms with the same atomic number but different atomic masses? Isotopes Fluorine's atomic number is 9 and its atomic mass is 19. ...

A _____ is a heat exchanger that transfer heat from the refrigerant flowing inside it to the air. The temperature of the refrigerant flowing through it is VERY HIGH - CONDENSER A ______ is used to seal duct seams against leaks. - SPACIAL TYPE OF MASTIC A class of refrigerants that contains chlorine, fluorine, and carbon is call._____ - CHLOROFLUOROCARBON - CFC A class of refrigerants that contains hydrogen, chlorine, fluorine, and carbon is call_____ - HYDROCHLOROFLOUOROCARCON - HCFC A de...

2 © OCR 2023 Section A You should spend a maximum of 30 minutes on this section. Write your answer to each question in the box provided. 1 Crude oil is a resource that is being made extremely slowly. Which word describes a resource that is being made extremely slowly? A Finite B Hydrocarbon C Non‑renewable D Petrochemical Your answer [1] 2 The Group 7 element fluorine is a gas at room temperature and pressure. The Group 7 elements show a trend in boiling points going down the gro...

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 - ANSWER a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth c. Thin layer ...