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5 Written questions

5 Matching questions

  1. nonpolar covalent bond
  2. solvent
  3. vapor pressure
  4. tetrahedral structure
  5. mass
  1. a An arrangement of the VSEPR model where four pairs of electrons are placed 109.5 degrees apart to form tetrahedron.
  2. b The quantity or amount of matter that an object possesses.
  3. c A covalent bond between two atoms with the same electronegativity value; thus, the electrons are share equally between the two atoms.
  4. d The substance that the solute is dissolved into.
  5. e The pressure exerted by a vapor in equilibrium with its liquid.

5 Multiple choice questions

  1. The shape of the surface of a liquid when placed in a glass cylinder.
  2. A system of a solvent and one or more solutes homogeneously mixed.
  3. A solution containing less solute per unit than its corresponding saturated solution.
  4. Force per unit area; expressed in many units, such as mm Hg, atm, lb/in squared, torr, and pascal.
  5. The temperature at which the vapor pressure of a liquid equals 1 atm or 760 torr pressure.

5 True/False questions

  1. ionA positively or negatively charged atom or group of atoms.

          

  2. hydrateA solid that contains water molecules as part of its crystalline structure.

          

  3. molar volume (of a gas)The volume of 1 mole of a gas at STP equals 22.4 L/mol.

          

  4. supersaturated solutionA solution containing more solute than needed for a saturated solution at a particular temperature.

          

  5. physical changeInherent physical properties of a substance that can be determined without altering its composition: color, taste, odor, state of matter, density, melting point, boiling point.

          

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