AP Chemistry Unit 3 Progress Check MCQ AP Scoring Guide
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AP Chemistry Unit 3 Progress Check MCQ AP Scoring GuideAP Chemistry Unit 3 Progress Check MCQ AP Scoring GuideAP Chemistry Unit 3 Progress Check MCQ AP Scoring GuideAP Chemistry Unit 3 Progress Check MCQ AP Scoring GuideAP Chemistry Unit 3 Progress Check MCQ AP Scoring GuideAP Chemistry Unit 3 Prog...
AP Chemistry Scoring Guide Unit 3 Progress Check: MCQ https://www.stuvia.com/ 1. Whic h particl e diagra m show n abov e best represent s the stronges t intermolecula r force betwee n two ethanol, , molecules? Diagra m 1, becaus e it show s hydroge n bond s formin g betwee n hydroge n atom s from differen t ethanol A molecules. B Diagram 1, because it shows strong, directional dipole -dipole forces between two polar ethanol molecules. Diagra m 2, becaus e it show s the formatio n of a hydroge n bond betwee n an atom bonde d to an atom C with an atom from another molecule. Diagra m 2, becaus e it show s the dipol e from an ethano l molecul e inducin g a dipol e in anothe r ethanol D molecule. 2. The diagram above represents four cations, all shown to the same scale. Which cation would be predicted by Coulomb’s law to have the strongest ion -dipole attraction to water, and why? AP Chemistry Scoring Guide Unit 3 Progress Check: MCQ https://www.stuvia.com/ A , because it is the smallest group 1 metal ion. B , because it has the largest charge -to-size ratio. C , because it has the smallest charge -to-size ratio. D , because it is the largest group 2 metal ion. 3. A solid compoun d of a grou p 1 (alkali ) meta l and a grou p 17 (halogen ) elemen t dissolve s in water . The diagra m abov e represent s one type of solut e particl e presen t in the solution . Whic h of the following identifies the solute particle and best helps explain how the solute particle interacts with water molecules? AP Chemistry Scoring Guide Unit 3 Progress Check: MCQ https://www.stuvia.com/ A The particle is a negative ion, and the interactions are hydrogen bonds. B The particle is a negative ion, and the interactions are ion-dipole attractions. C The particle is a positive ion, and the interactions are ion-dipole attractions. D The particle is a positive ion, and the interactions are dipole -dipole attractions. 4. The diagram s abov e represen t two allotrope s of solid phosphorus . Whic h of the followin g correctly identifies the allotrope with the higher melting point and explains why? Allotrop e , becaus e it has molecule s with covalen t bond s that are stronge r than dispersio n forces A between individual atoms in allotrope . Allotrop e , becaus e it has covalen t bond s betwee n the phosphorou s atom s that are stronge r than the B dispersion forces between the molecules in allotrope . Allotrop e , becaus e it has metalli c bondin g that is stronge r than the covalen t bondin g foun d in the C molecules in allotrope . D Both allotropes have the same melting point because they both contain phosphorous atoms.
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