CHM1046 Practice Exam 1

CHM1046 Practice Exam 1 - Name:_ CHM 1046: Exam 1 Chapters...

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Name:_______________________ CHM 1046: Exam 1 – Chapters 10 & 11 Chapter 10: A. Multiple Choice: Select the one best answer to each question and write your answer in the space provided. (2 pts each) _____ 1. The bonds between hydrogen and oxygen in a water molecule can be characterized as: a. hydrogen bonds b. London dispersion forces c. intermolecular forces d. intramolecular forces _____ 2. Which of the species below would you expect to show the least hydrogen bonding? a. NH 3 b. H 2 O c. HF d . C H 4 _____ 3. Which of the following substances can be described as cations bonded together by mobile electrons? a . A g ( s ) b. S 8 (s) c . K r ( l ) d. KCl(s) _____ 4. At room temperature, CsF is expected to be: a. a gas b. a conducting solid c. a liquid d. a brittle solid _____ 5. A crystal of NaCl is: a. soft, low melting, a good electrical conductor b. hard, high melting, a good electrical conductor c. soft, low melting, a poor electrical conductor d. hard, high melting, a poor electrical conductor
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B. Fill in the Blanks: Write your answers in the spaces provided. (3 pts each) 1. Order the intermolecular forces from weakest to strongest : 1. 2. 3. 2. Evaporation is in equilibrium with ___________________________ when a measurement of vapor pressure is made. 3. Doping Se with As would produce a(n) _____________________ semiconductor. 4. Molecular solids have _______________ melting points. 5. Ionic solids have __________________ melting points. 6.
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CHM1046 Practice Exam 1 - Name:_ CHM 1046: Exam 1 Chapters...

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