1. ReShayla was making pancakes and decided that she wanted hot syrup on her pancakes. As she poured the syrup into a bowl, it came out slowly. After she heated it in the microwave for a few seconds, she poured the syrup onto her pancakes and it came out quickly. Why did the syrup come out quicker after she warmed it up? a. Its surface tension decreased because the radiation from the microwave broke the intermolecular forces it had. b. The radiation from the microwave increased its viscosity by breaking the syrup's intermolecular forces. c. Its surface tension increased because the radiation from the microwave broke the intermolecular forces it had. d. The radiation from the microwave decreased its viscosity by breaking the syrup's intermolecular forces. 2. The energy to change one mole of a substance from a liquid to a vapor at its boiling point is a. molar heat of fusion b. molar heat of vaporization c. molar heat of boiling d. critical heat 3. Dr. Rodriguez-Bussey measures the boiling points of water, glycerin, and nail polish remover. Her results show that water has a significantly higher boiling point than glycerin or nail polish remover. Which of the following is the BEST observations for her experiment? a. Substances with ionic bonding will have a higher boiling point. b. Substances with covalent bonding will have a higher boiling point. c. Substances with hydrogen bonding will have a higher boiling point. d. Substances with dipole-dipole forces will have a higher boiling point. 4. Which of the following best describes all the intermolecular forces exhibited by a pure sample of CS2? a. dispersion only b. dipole-dipole and hydrogen bonding c. dispersion and hydrogen bonding d. dispersion, dipole-dipole, and hydrogen bonding 5. The intermolecular force that allows you to drink a liquid through a straw is known as a. Surface tension b. Viscosity c. Cohesion and adhesion d. Anti-gravity
1. ReShayla was making pancakes and decided that she wanted hot syrup on her pancakes. As she poured the syrup into a bowl, it came out slowly. After she heated it in the microwave for a few seconds, she poured the syrup onto her pancakes and it came out quickly. Why did the syrup come out quicker after she warmed it up? a. Its surface tension decreased because the radiation from the microwave broke the intermolecular forces it had. b. The radiation from the microwave increased its viscosity by breaking the syrup's intermolecular forces. c. Its surface tension increased because the radiation from the microwave broke the intermolecular forces it had. d. The radiation from the microwave decreased its viscosity by breaking the syrup's intermolecular forces. 2. The energy to change one mole of a substance from a liquid to a vapor at its boiling point is a. molar heat of fusion b. molar heat of vaporization c. molar heat of boiling d. critical heat 3. Dr. Rodriguez-Bussey measures the boiling points of water, glycerin, and nail polish remover. Her results show that water has a significantly higher boiling point than glycerin or nail polish remover. Which of the following is the BEST observations for her experiment? a. Substances with ionic bonding will have a higher boiling point. b. Substances with covalent bonding will have a higher boiling point. c. Substances with hydrogen bonding will have a higher boiling point. d. Substances with dipole-dipole forces will have a higher boiling point. 4. Which of the following best describes all the intermolecular forces exhibited by a pure sample of CS2? a. dispersion only b. dipole-dipole and hydrogen bonding c. dispersion and hydrogen bonding d. dispersion, dipole-dipole, and hydrogen bonding 5. The intermolecular force that allows you to drink a liquid through a straw is known as a. Surface tension b. Viscosity c. Cohesion and adhesion d. Anti-gravity
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:1. ReShayla was making pancakes and decided that she wanted hot syrup on her pancakes.
As she poured the syrup into a bowl, it came out slowly. After she heated it in the
microwave for a few seconds, she poured the syrup onto her pancakes and it came out
quickly. Why did the syrup come out quicker after she warmed it up?
a. Its surface tension decreased because the radiation from the microwave broke the
intermolecular forces it had.
b. The radiation from the microwave increased its viscosity by breaking the syrup's
intermolecular forces.
c. Its surface tension increased because the radiation from the microwave broke the
intermolecular forces it had.
d. The radiation from the microwave decreased its viscosity by breaking the syrup's
intermolecular forces.
2. The energy to change one mole of a substance from a liquid to a vapor at its boiling point
is
a. molar heat of fusion
b. molar heat of vaporization
c. molar heat of boiling
d. critical heat
3. Dr. Rodriguez-Bussey measures the boiling points of water, glycerin, and nail polish
remover. Her results show that water has a significantly higher boiling point than glycerin
or nail polish remover. Which of the following is the BEST observations for her
experiment?
a. Substances with ionic bonding will have a higher boiling point.
b. Substances with covalent bonding will have a higher boiling point.
c. Substances with hydrogen bonding will have a higher boiling point.
d. Substances with dipole-dipole forces will have a higher boiling point.
4. Which of the following best describes all the intermolecular forces exhibited by a pure
sample of CS2?
a. dispersion only
b. dipole-dipole and hydrogen bonding
c. dispersion and hydrogen bonding
d. dispersion, dipole-dipole, and hydrogen bonding
5. The intermolecular force that allows you to drink a liquid through a straw is known as
a. Surface tension
b. Viscosity
c. Cohesion and adhesion
d. Anti-gravity
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