portuhitles for hydrogen bonding to (D) Heptane has a carbon chain that is further apart making it less stable. 16. Which of the following would be expected to have the lowest vapor pressure at 25°C? (A) N2 (B) Cl, (С) Brz (D) L2 sllame botudicte 19. In which of the following pairs of substances is the substance with the higher expected melting point listed first? (A) KCl or NaCl (B) Mg or Al (C) Ba or Cs (D) Ar or Kr al ad MOo ise boyoe mos H ba 1o sianoo lelaygo ed qu alam olog 20. Which of the substances below would be expected to have the lowest boiling point at 1 atm pressur (A) (bent) F-O-F ) KOH wapichare clotive number of dissolved particles remaining O=0 ( (D) [Li*][CH] Combonuq VNC loh 21. Which factor(s) account for the observed difference in boiling points for the compounds below? ai esononib Ethane CH,CH3 Propane CH,CH,CH, Compound -42°C Boiling point (A) stronger dipole-dipole attractions between propane molecules (B) a larger number of covalent bonds within the propane molecule a larger molar mass and more internal bonding in propane molecules (D) a larger surface area and larger electron cloud in propane molecules

portuhitles for hydrogen bonding to (D) Heptane has a carbon chain that is further apart making it less stable. 16. Which of the following would be expected to have the lowest vapor pressure at 25°C? (A) N2 (B) Cl, (С) Brz (D) L2 sllame botudicte 19. In which of the following pairs of substances is the substance with the higher expected melting point listed first? (A) KCl or NaCl (B) Mg or Al (C) Ba or Cs (D) Ar or Kr al ad MOo ise boyoe mos H ba 1o sianoo lelaygo ed qu alam olog 20. Which of the substances below would be expected to have the lowest boiling point at 1 atm pressur (A) (bent) F-O-F ) KOH wapichare clotive number of dissolved particles remaining O=0 ( (D) [Li*][CH] Combonuq VNC loh 21. Which factor(s) account for the observed difference in boiling points for the compounds below? ai esononib Ethane CH,CH3 Propane CH,CH,CH, Compound -42°C Boiling point (A) stronger dipole-dipole attractions between propane molecules (B) a larger number of covalent bonds within the propane molecule a larger molar mass and more internal bonding in propane molecules (D) a larger surface area and larger electron cloud in propane molecules

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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