Feb 2021 solubility in water? A. Na+ and Clions are favorable sites for H-bonding to form. . The ions in Nacl participate in on-induced dipole attractions with water. * The presence of charged ends in NaCl enables dipole-dipole interaction with U. London dispersion forces in NaCl predominate leading to strong dipole interactions with water. water. 19. Xenon (Xe) has a greater atomic weight than Neon (Ne). Xe has 131.3 amu while Ne has 20.2 amu, The melting points are 166.1K and 27.3K, respectively. How do intermolecular forces account for the difference? A. Dipole- dipole interaction is greater in Xe than Ne so more energy is needed to break the bonds. B. H-bonding is greater for substances with higher atomic weight so greater energy is needed to change Xe to vapor. C. Atomic weight increases the chance of lesser dispersion forces so greater energy is neede D. London dispersion forces is greater in substances with heavier atomic weight so greater energy is needed to separate the atoms of Xe than Ne. to separate Xe atoms to change to vapor. 20. Which of the following is a CORRECT pair? A. Glyceride: Polysaccharide B. Glucose: Trisaccharide C. Starch: Polysaccharide D. Sucrose: Monosaccharide 21 Which of the following statements Is TRUE?
Feb 2021 solubility in water? A. Na+ and Clions are favorable sites for H-bonding to form. . The ions in Nacl participate in on-induced dipole attractions with water. * The presence of charged ends in NaCl enables dipole-dipole interaction with U. London dispersion forces in NaCl predominate leading to strong dipole interactions with water. water. 19. Xenon (Xe) has a greater atomic weight than Neon (Ne). Xe has 131.3 amu while Ne has 20.2 amu, The melting points are 166.1K and 27.3K, respectively. How do intermolecular forces account for the difference? A. Dipole- dipole interaction is greater in Xe than Ne so more energy is needed to break the bonds. B. H-bonding is greater for substances with higher atomic weight so greater energy is needed to change Xe to vapor. C. Atomic weight increases the chance of lesser dispersion forces so greater energy is neede D. London dispersion forces is greater in substances with heavier atomic weight so greater energy is needed to separate the atoms of Xe than Ne. to separate Xe atoms to change to vapor. 20. Which of the following is a CORRECT pair? A. Glyceride: Polysaccharide B. Glucose: Trisaccharide C. Starch: Polysaccharide D. Sucrose: Monosaccharide 21 Which of the following statements Is TRUE?
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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Transcribed Image Text:24 Feb 2021
2odium chloride (NaCI) is completely saluble in water. What is responsible for its
solubility in water?
A. Na+ and Clions are favorable sites for H-bonding to torm.
В.
The presence of charged ends in NaCl enables dipole-dipole interaction with
water.
e lons in Načl participate in on-induced dipole attractions with water.
C.
D. London dispersion forces in NaCl predominate leading to strong dipole
interactions with water.
5. Kenon (Xe) has a greater atomic weight than Neon (Ne). Xe has 131.3 amu while
Ne has 20.2 amu, The melting points are 166.1K and 27.3K, respectively. How do
intermolecular forces account for the difference?
A. Dipole- dipole interaction is greater in Xe than Ne so more energy is needed to
break the bonds.
B. H-bonding is greater for substances with higher atomic weight so greater
energy is needed to change Xe to vapor.
C. Atomic weight increases the chance of lesser dispersion forces so greater
energy is needed to separate Xe atoms to change to vapor.
D. London dispersion forces is greater in substances with heavier atomic weight
so greater energy is needed to separate the atoms of Xe than Ne.
20. Which of the following is a CORRECT pair?
A. Glyceride: Polysaccharide
B.
C. Starch: Polysaccharide
D. Sucrose: Monosaccharide
Glucose: Trisaccharide
21. Which of the following statements Is TRUE?
A. Glucose are lipids that are used by the body for energy.
B. Cholesterol is the most unpopular steroid that aids in cellular functions.
C. Oils are lipids that are solid at room temperature that contain saturated fatty
acids.
D. Fats are lipids that are liquid at room temperature that contain saturated fatty
acids.
22. Amino acids are the building blocks of proteins. Which of the following is an
example of a protein?
C. Keratin
D. All of the choices are proteins.
A. Actin
B. Fibroin
23. Which of the following BEST describes DNA?
A. DNA is the blueprint of life and stores genetic information.
DNA is the blueprint of life and stores immune response information.
C. DNA is the blueprint of life and stores instructions for protein synthesis.
D. DNA is the blueprint of life and stores instructions for carbohydrate synthesis.
В.
24. Enzymes are proteins that act as biological catalysts that speed up chemical
reactions in our body. Which of the following enzyme helps in breaking down
proteins?
A. Amylase
B. Lipase
C. Pepsin
D. Sucrase
2022.04.01 21:48
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