Chem 219 exam 1 2024 - Study guides, Class notes & Summaries

CHEM 219 Final Exam Questions And Answers 2024/2025 What is the difference between effusion and diffusion? - ANSEffusion is through a pinhole, and diffusion is through open space. Under what conditions are gases most likely to behave ideally? - ANS-Gases are more likely to behave as ideal gases at low pressures and high temperatures. Particles are moving faster and are farther apart, therefore they are less likely to interact with each other The phrase 'like dissolves like' refer...

CHEM-219- MODULE 2 EXAM|LATEST UPDATE 2024|VERIFIED PORTAGE LEARNING EXAM QUESTIONS AND CORRECT ANSWERS ALL GRADED A+|GUARANTEED SUCCESS| What are hydrocarbons? - ANSWER-Molecules composed of only the elements carbon and hydrogen What are the two major classes of hydrocarbons? - ANSWER-Aromatic (benzene) and aliphatic (alkanes, alkenes, alkynes) What is the main source of hydrocarbons? - ANSWER-Fossil fuels like coal, petroleum, and natural gas obtained by mining and drilling. ...

CHEM 219 EXAM 1 QUESTIONS AND ANSWERS GRADED A+ On a piece of scratch paper, write out the Lewis Dot Diagram for each of the indicated elements and determine the following for each: a) The number of Lone Pairs the atom possesses in its valence shell. b) The number of Unpaired Electrons the atom possesses in its valence shell. c) The number of bonds the atom will form. Oxygen Carbon Hydrogen Nitrogen - Answer-Oxygen - a) 2 b) 2 c) 2 Carbon - a) 0 b) 4 c) 4 Hydrogen- a) 0 b) 1 c) 1 Ni...