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CHEM 1046 MIDTERM PRETEST QUESTIONS LATEST 2023 1. What is the intermediate in the following mechanism? A + B  C + D B + D  X A) A B) B C) C D) D E) X 2. Calculate the activation energy of a reaction that has a rate constant of 4.41 x 10-3s- 1 at 78 K and rate constant of 9.79 x 10-2s-1 at 315 K. A) 2.67 kJ/mol B) 2.90 kJ/mol C) 0.0589 kJ/mol D) 22.4 kJ/mol E) 200.34KJ/mol 3. A chemical reaction that is 1st order in X is observed to have a rate constant of 1.2 X 10-2/sec...

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7 pages

Written in 2022/2023

Grade A

clavin

London Dispersion Forces - correct answers the force of attraction that arise as a result of temporary dipoles induced in the atoms of molecules, experienced by ALL molecules Dipole-Dipole Forces - correct answers forces that occur between polar molecules, A permanent dipole exists when one end of a molecule is electron deficient (partially positive) and the other end of a molecule is electron rich (partially negative) Hydrogen Bonding - correct answers a type of dipole-dipole interaction ...

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4 pages

Written in 2025/2026

Grade A+

RealGrades