Cem 141 msu - Study guides, Class notes & Summaries

CEM 141 MSU Final Exam Questions And Answers Rated A+ New Update Assured Satisfaction

Consider the question: Is there an attractive force between a pencil and the earth? Is this a scientific question? [Yes or No] Because III. It can be tested and answered through observations and experiments IV. The answer is already known and we find it online V. There is no way to design an experiment to answer this question. - Answer-Yes because it can be tested and answered though observations and experiments Which of the following properties ascribed to atoms by the Greeks do we still...

CEM 141 MSU Exam 3 UPDATED Exam Questions and CORRECT Answers T/F: Covalent bonds are present only when atomic orbitals interact constructively. - Correct ANSWER- True. Binding in Diamond - Correct ANSWER- Each carbon forms 4 bonds to 4 identical carbons; tetrahedral; sp3 Valence Bond Theory - Correct ANSWER- The idea that covalent bonds are formed when orbitals of different atoms overlap. T/F: Electrons are localized in molecular orbital. - Correct ANSWER- False

CEM 141 MSU Final Exam UPDATED Exam Questions and CORRECT Answers Yes because it can be tested and answered though observations and experiments - Correct ANSWER- Consider the question: Is there an attractive force between a pencil and the earth? Is this a scientific question? [Yes or No] Because III. It can be tested and answered through observations and experiments IV. The answer is already known and we find it online V. There is no way to design an experiment to answer this question

CEM 141 MSU Exam 1 UPDATED Exam Questions and CORRECT Answers The statement "If I add cold milk to hot coffee the temperature will decrease," is a? - Correct ANSWER- Claim, always include an explanation and reasoning to the claim. Scientific Model - Correct ANSWER- Models are used to make testable predictions How much is a picometer? - Correct ANSWER- 0.1 x 10^-12 meters Atomic Force Microscopy/ Scanning Tunneling Microscopy - Correct ANSWER- Microscopes that now allows us to view at...

Which reaction requires the most energy? A. N(g) → N+(g) + e - B. N+(g) → N2+(g) + e - C. F(g) → F+(g) + e - D. F+(g) → F2+(g) + e - - Answer-D. F+(g) → F2+(g) + e - Fluorine has a higher effective nuclear charge than Nitrogen - so it is harder to remove an electron (takes more energy because the electron is more strongly attracted by the nucleus). Effective nuclear charge is the same for F and F+ because the number of protons and core electrons are not changed. However, when t...

Consider the question: Is there an attractive force between a pencil and the earth? Is this a scientific question? [Yes or No] Because III. It can be tested and answered through observations and experiments IV. The answer is already known and we find it online V. There is no way to design an experiment to answer this question. - Answer-Yes because it can be tested and answered though observations and experiments Which of the following properties ascribed to atoms by the Greeks do we still...

CEM 141 MSU Exam 1 Questions & Answers 2024/2025 The statement "If I add cold milk to hot coffee the temperature will decrease," is a? - ANSWERSClaim, always include an explanation and reasoning to the claim. Scientific Model - ANSWERSModels are used to make testable predictions How much is a picometer? - ANSWERS0.1 x 10^-12 meters Atomic Force Microscopy/ Scanning Tunneling Microscopy - ANSWERSMicroscopes that now allows us to view atoms. Leaves are green in the summer becaus...