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- hat does it mean to say that a bond is polar? Give two examples of molecules with polar bonds. Indicate in your examples the direction of the polarity.Use the Molecule Shape simulator (http://openstaxcollege.org/I/6MolecShape) to build a molecule. Starting with the central atom, click on the double bond to add one double bond. Then add one single bond and one lone pair. Rotate the molecule to observe the complete geometry. Name the electron group geometry and molecular structure and predict the bond angle. Then click the check boxes at the bottom and right of the simulator to check your answers.Successive substitution of F atoms for H atoms in the molecule CH4 produces the molecules CH3F, CH2F2, CHF3, and CF4. a. Draw Lewis structures for each of the five molecules. b. Using VSEPR theory, predict the geometry of each of the five molecules. c. Specify the polarity (polar or nonpolar) for each of the five molecules.
- Successive substitution of F atoms for H atoms in the molecule NH3 produces the molecules NH2F, NHF2, and NF3. a. Draw Lewis structures for each of the four molecules. b. Using VSEPR theory, predict the geometry of each of the four molecules. c. Specify the polarity (polar or nonpolar) for each of the four molecules.According to the VSEPR model, what are the arrangements of two, three, four, five, and six valence-shell electron pairs about an atom?Acrolein is the starting material for certain plastics. (a) Which bonds in the molecule are polar and which are nonpolar? (b) Which is the most polar bond in the molecule? Which atom is the partial negative end of this bond?
- Write chemical formulas for the following binary molecular compounds. a. Iodine monochloride b. Dinitrogen dioxide c. Nitrogen trichloride d. Hydrogen bromidePolarity of a molecule is important because polar molecules have different behavior and characteristics than a nonpolar molecule. O True O FalseGive the polarity of the molecule of H2S and its bond angle.
- Complete the following statements about the molecule NBr3. Please note that ALL atoms in this molecule obey the octet rule. The molecule NBr3 has BLANK total valence electrons. The molecule NBr3 should be drawn with N in the middle, and the Br atoms on three sides of the N atom. After drawing the Lewis structure for NBr3 using the above information, it is evident that the three-dimensional shape (or geometry) of the molecule is BLANK , with a bond angle of BLANK degrees.Complete the following statements about the molecule COS. Please note that ALL atoms in this molecule obey the octet rule. The molecule COS has total valence electrons. The molecule COS should be drawn with C in the middle, O to the left of the C, and S to the right of the C. After drawing the Lewis structure for COS using the above information, it is evident that the three-dimensional shape (or geometry) of the molecule is , with a bond angle of degrees.Following is a molecule with polar bonds whose shape was obtained using the VSEPR theory. Specify the molecular shape of this molecule, and whether the molecule is polar or nonpolar. (Hint: In terms of polarity, see whether the dipoles in the molecule cancel or not. A molecule containing polar bonds can be nanpolar if the dipoles cancel each other. You can imagine the dipoles as ropes pulling on the central atom–If the pulls cancel each other, that is, the central atom cannot move, then the molecule is nonpolar. If on the other hand the opposite is true, then the molecule is polar.) O trigonal pyramidal shape, nonpolar O trigonal planar shape, nonpolar O tetrahedral shape, polar O trigonal pyramidal shape, polar O trigonal planar shape, polar