Cem 141 exam 3 - Study guides, Class notes & Summaries

CEM 141 Exam -3 (1) Questions & 100% Verified Correct Answers with complete solutions (Latest update 2024 2025

CEM 141 EXAM 3 MSU

CEM 141 - Exam 2 (Chapters 2 and 3) (1). Questions & 100% Verified Correct Answers with complete solutions (Latest update 2024 2025

Ionization Energy Ans: energy required to remove an electron from an atom in the gas phase Left Side Electrons Ans: have weaker attractions to remove electrons *easier to remove electrons from the left side of the table than the right side* Does it take MORE or LESS energy to remove an electron from Li than from Na? Ans: MORE Why? Because as we move down a group, the orbitals become larger and weaker. While going across the effective nuclear charge increases. (holds onto the electrons ...

CEM 141 Final Exam pt 3 (Real Exam 3, Mock Exam 3, PP Lecture 26-35) (1)

Cem 141 Chapter 3 Origin of Atoms Exam Questions| Already answered| GRADED A+ in an infinitely dense moment 13.8 billion years ago, the Universe is born from a singularity. - ANSWER- The Big Bang Theory true - ANSWER-If thermal energy is spreading out it will eventually cool a mysterious particle/force accelerates the expansion. - ANSWER-Inflation after 380,00 years; loose electrons cool enough to combine with protons. The Universe becomes transparent to light. The microwave background b...

T/F: Covalent bonds are present only when atomic orbitals interact constructively. Ans: True. Binding in Diamond Ans: Each carbon forms 4 bonds to 4 identical carbons; tetrahedral; sp3 Valence Bond Theory Ans: The idea that covalent bonds are formed when orbitals of different atoms overlap. T/F: Electrons are localized in molecular orbital. Ans: False T/F: Electrons are localized in Valence Bond. Ans: True T/F: When the hybrid orbitals combine, there is a large gap between the bondin...

CEM 141 exam 3 Questions & 100% Verified Correct Answers with complete solutions (Latest update 2024 2025

CEM 141 Exam 3 Practice Questions & 100% Verified Correct Answers with complete solutions (Latest update 2024 2025

CEM 141 - Exam 2 questions and answers well illustrated. mole - correct answers.6.022 x 10^23 things number of particles that allows us to convert from the molecular to the macroscopic level limiting reactant/reagent - correct t of one of the reactants which limits how much product can be formed. smallest amount. percent yield - correct l/theoretical x 100 electromagnetic radiation - correct answers. wavelength - correct answers.The distance between two co...