CHEM 1A Lecture Notes - Euclidean Vector

For a molecule to exhibit dipole-dipole interactions, it must _______ a. have a temporary dipole moment. b. have three or more atoms. c. have a hydrogen bound to an oxygen, nitrogen, or fluorine. d. have a permanent dipole moment, be an ion. A homogeneous mixture of two or more substances is called ______ a. a mess. b. a solution. c. a compound. d. a solvent. e. an electrolyte. Which one of the following statements regarding a weak acid is NOT correct? a. Acetic acid is an example. b. A weak acid neutralizes bases. c. A weak acid ionizes in water to produce hydronium ions. d. A weak acid has a very low concentration. e. A weak acid ionizes only to a small extent in water. In VSEPR theory, molecular geometry is determined by ______ a. electron-nucleus attractive forces. b. electron-electron repulsive forces. c. electron-proton attractive forces. d. proton-proton repulsive forces. e. electron-electron attractive forces. Which of the following contains the largest number of atoms? a. 1 mol water b. 1 mol dinitrogen pentoxide c. 2 mol carbon monoxide d. 1 mol phosphorus trichloride e. All of these contain the same number of atoms. What is the hybridization of arsenic in AsCl_3? a. sp^2 b. sp c. sp^3 d. sp^3d^2 e. sp^3d Ion-dipole forces always require a. an ion and a polar molecule. b. a cation and a water molecule. c. an ion and a water molecule. d. an anion and a polar molecule. e. a polar and a nonpolar molecule.