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Basic Chemistry Practice Test: Intermolecular Forces, Liquids, and Solids
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Avg score: 0% Most missed: “Large intermolecular forces in a substance are manifested by __________.”
Intermolecular forces are forces of attraction or repulsion between particles in solids, liquids, and gases. They are also called van der Waals forces.  Here are some ways intermolecular forces vary in solids, liquids, and gases: Solids: Have the strongest intermolecular forces because their particles are tightly packed. This makes solids incompressible and dense. Liquids: Have intermolecular forces that hold the molecules in contact, but are not strong enough to keep them in fixed positions. The particles in liquids are looser than in solids, so the force of attraction is higher than in... Show more
Basic Chemistry Practice Test: Intermolecular Forces, Liquids, and Solids
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25 Questions

1. Which of the following is not a type of solid? ionic molecularsupercritical metallic covalent-network
2. An ionic solid, NaCl (s), dissolves in water because of the __________.
3. What intermolecular force is responsible for the fact that ice is less dense than liquid water?
4. The heating curve shown was generated by measuring the heat flow and temperature for a solid as it was heated. The slope of the __________ segment corresponds to the heat capacity of the liquid of the substance.
5. Which statements about viscosity are true? (i) Viscosity increases as temperature decreases. (ii) Viscosity increases as molecular weight increases. (iii) Viscosity increases as intermolecular forces increase.
6. The heating curve shown was generated by measuring the heat flow and temperature for a solid as it was heated. The slope of the __________ segment corresponds to the heat capacity of the solid.
7. Which of the following molecules has hydrogen bonding as its only intermolecular force?
8. What portion of the volume of each atom or ion on the face of a unit cell is actually within the unit cell?
9. A substance that expands to fill its container yet has a density approaching that of a liquid, and that can behave as a solvent is called a(n) __________.
10. Large intermolecular forces in a substance are manifested by __________.
11. In which of the following molecules is hydrogen bonding likely to be the most significant component of the total intermolecular forces? CH4 C5H11OH C6H13NH2 CH3OH CO2
12. Consider the following statements about crystalline solids:
(i) Molecules or atoms in molecular solids are held together via intermolecular forces. (ii) Metallic solids have atoms in the points of the crystal lattice. (iii) Ionic solids have formula units in the point of the crystal lattice. (iv) Atoms in covalent-network solids are connected via a network of covalent bonds. Which of the statements is false?
13. Which one of the following substances will not have hydrogen bonding as one of its intermolecular forces?
14. Which of the following has dispersion forces as its only intermolecular force? CH4 HCl C6H13NH2 NaCl CH3Cl
15. The predominant intermolecular force in CaBr2 is __________.
16. As a solid element melts, the atoms become __________ and they have __________ attraction for one another.
17. The unit cell with all sides the same length and all angles equal to 90° that has lattice points only at the corners is called __________.
18. The vapor pressure of a liquid __________.
19. On a phase diagram, the critical pressure is __________.
20. Of the following, __________ is an exothermic process. meltingsubliming freezing boiling
21. Which one of the following cannot form a solid with a lattice based on the sodium chloride structure? NaBr LiF RbI CuO CuCl2
22. Which one of the following should have the lowest boiling point? PH3 H2S HCl SiH4 H2O
23. The enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C is ________kJ The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2O , .Hfus = 6.01 kJ/mol, and .Hvap = 40.67 kJ/mol
24. The phase diagram of a substance is given above. The region that corresponds to the solid phase is __________.
25. Some things take longer to cook at high altitudes than at low altitudes because __________.