Group the following molecular formulas under their respective geometries. Use the Real Molecules mode to verify the correct geometry for select structures. Drag the appropriate items to their respective bins. > View Available Hint(s) Reset Help BeCl2 SF. CO2 CH4 PCl, HCN BF3 PF, CH20 NH4+ Linear Trigonal planar Tetrahedral Trigonal bipyramidal Octahedral

Group the following molecular formulas under their respective geometries. Use the Real Molecules mode to verify the correct geometry for select structures. Drag the appropriate items to their respective bins. > View Available Hint(s) Reset Help BeCl2 SF. CO2 CH4 PCl, HCN BF3 PF, CH20 NH4+ Linear Trigonal planar Tetrahedral Trigonal bipyramidal Octahedral

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter7: Chemical Bonding And Molecular Geometry

Section: Chapter Questions

Problem 115E: Use the Molecule Shape simulator (http://openstaxcollege.org/l/16MolecShape) to explore real...

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A student draws the picture of ammonia (NH3) in the box below, left, and predicts it will be a flatmolecule with HNH bond angles of exactly 120°. Unfortunately, the student left something out. a. What did the student omit from his drawing? b. What is the actual HNH bond angle of ammonia (based on the draw g above, right)? c. Explain why water, ammonia, and methane (shown below) all have about the same bondangles (close to 109.5°) even though they have different numbers of bonds.
Consider the following flat drawing of methane (CH4) . a. What is HCH bond angle implied by this drawing if you assume it is flat? b. Are the electron domains of this flat CH4 spread out as much as possible? c. Use model materials to make a model of CH4 (methane). If you assembled it correctly, thefour bonds (bonding electron domains) of your model will be 109.5° apart. d. In which representation, the drawing above or the model in your hand (circle one) are theH’s of CH4 more spread out around the central carbon? e. Confirm that your model looks like the following drawing. The wedgebond represents a bond coming out of the page, and the dash bondrepresents a bond going into the page f. You will often see methane drawn as if it were flat (like on the previous page). Why is thismisleading, and what is left to the viewer’s imagination when looking at such a drawing?
Use the Molecule Shape simulator (http://openstaxcollege.org/l/16MolecShape) to explore real molecules. On the Real Molecules tab, select H2O. Switch between the real and model modes. Explain the difference observed.
You hear a student from a nearby group say that “Electron domains repel one another.” Citeevidence from Figure 1.2 to support or refute this statement.
Draw the Lewis structure of AsO³- showing all lone pairs. Select Draw Rings More ||||||||| As G Erase Q2 Q 3- Identify the molecular geometry of AsO³. 4 see-saw O T-shaped tetrahedral octahedral linear square pyramidal trigonal planar trigonal pyramidal bent square planar O trigonal bipyramidal
Please fill in the blank ! In part B, the difference is that the molecules have more than one atom with two or more attached neighbors. As molecules become larger and more complex, VSEPR theory does not attempt to create names for the overall geometries that result. Instead, we continue to consider the geometry about one central atom at a time. By giving the arrangement about each such atom in the larger structure, we can generate enough information to develop an overall picture. Thus, in your report for part B, you should determine which atoms have more than one bound neighbor, then repeat the procedure for part A. When deciding whether the molecules in part B are polar or nonpolar, focus on the molecule as a whole, not the geometry about a single atom. If the molecule is polar, draw a dipole arrow on your sketch indicating polarity.
Use the Lewis dot structure (make sure you show all electron pairs) to predict the electronic geometry_(EG) and the shape of the molecule H2O. O EG - bent; shape - bent O EG - trigonal planar; shape lincar O EG- tetrahedral; shape - bent O EG - tetrahcdral; shape trigonal pyramidal O EG - trigonal bipyramidal; shape - tetrahedral
sp O sp² sp³ sp³d sp³d² What is the hybridization on the C that the arrow is pointing? HO C H ი C OH I- H NH2
Consider the ring cation, called "cyclopentadienyl cation".... one of five possible resonance structures that can be drawn for it is shown below. In the actual ring cation, what is the charge on any one carbon atom, and what is the bond order of any one C,C bond? 4? charge on one C = ? bond order of C,C bond ? Select one: O A. +2/5; 4/3 OB. + 1/6; 1.5 O C. + 2/5; 7/5 OD. + 1/5; 6/5 O E. + 1/5; 7/5
"Isl.exe/1o_u-lgNslkr7j8P3jH-IB-3LP6uMdqS-27IPNKKRZON-Bs3\- O STRUCTURE AND PROPERTY RELATIONSHIPS Using hybridization to predict relative length and strength of. Examine the labeled bonds in the structures below and determine the relative strength and length for each row. Structure Which bond is weaker? Which bond is shorter? (Choose one) (Choose one) Cl (Choose one) (Choose one) (Choose one) (Choose one) H.
CHEMWORK Draw a Lewis structure for the given skeletal molecule. Note: Multiple bonds and lone pairs are not shown in the skeletal molecule. H-C H N Submit H снно | | | •C-C-C-0 I ∙C CIH Н How many π bonds are found in this molecule? N-H H I H Hide Hints Look for the atoms that are sp² hybridized. Hint 1
Consider a molecule AB, where element A has 6 valence electrons and B has 7 valence electrons. If the AEn for each bond = 1.2, predict the shape, bond hybridization and polarity (polar or non-polar) of the molecule. Your answer should follow the format: a) number of total electrons for bonding; b) Steric Number and Lone Pairs; c) name of shape based on the VSEPR chart, d) bond hybridization and e) molecular polarity.