Predict the geometry around each carbon atom in vinyl acetate, a precursor of the polyvinyl alcohol polymer used in automobile safety glass.

What is the VSEPR Shape of Hexane?

Sketch the hydrogen bond(s) that form between ethanol and nitrogen trihydride and dihydrogen monoxide.   Show the proper VSEPR shapes of all molecules (meaning VSEPR shapes with proper bond angles) and use dotted or dashed lines to indicate the hydrogen bonds.  Indicate 4 different H-bonds between:  1) ethanol and nitrogen trihydride 2) ethanol and dihydrogen monoxide 3) dihydrogen monoxide and nitrogen trihydride and then 4) between the two ethanol molecules.

How many electron pairs are shared when a triple bond exists between two carbon atoms? What must he the geometric arrangement around the carbon atoms in a triple bond? Draw the Lewis structure of a simple molecule that contains a triple bond.

C2H2Br2 Describe the geometry about eachcentral carbon.

Ethambutol is a drug used to treat tuberculosis. Determine the shape around the indicated atoms in ethambutol. Don't forget to add lone pairs to heteroatoms before determining the shape around them. CH CH3 CH,CH3 H-O-CH-C-N-CH,CH,-Ņ-C-CH,-0-H H H ethambutol O a. bent, linear, tetrahedral, trigonal pyramid Ob. bent, tetrahedral, tetrahedral. trigonal pyramid O c. linear, linear, linear, trigonal pyramid O d. bent, linear, linear, trigonal pyranid A O E 4) I search hp 近

11. Which statement is true of the carbon-carbon bonds in benzene? (a) They are identical to the carbon-carbon bonds in cyclohexane. (b) They are identical to the carbon-carbon bonds in cyclohexene. (c) They are half-way between a double and single bond. (d) They are easily broken in chemical reactions. (e) They are all double bonds. ct Copyright O 2002 McGraw-Hill Ryerson Limited Name: Class:

Give the number of all of sigma bonds and all of the pi bonds for benzene, C6H6. H HIC I H 6 sigma bonds, 3 pi bonds 12 sigma bonds, 3 pi bonds 6 sigma bonds, 6 pi bonds O 3 sigma bonds, 6 pi bonds O 15 sigma bonds, 3 pi bonds

Why do alkanes, alkenes, and alkynes have a relatively low boiling point? O They have no large intermolecular forces holding them together. O They have no diple moments or polarity. O They have a lot of electron density in a very small amout of space.

In 1874, Dutch chemist Jacobus van't Hoff (1852–1911) and French chemist Joseph Le Bel (1847–1930) independently deduced that a carbon atom bonded to four atoms assumes a tetrahedral geometry. Prior to that time, it was believed that tetravalent carbons assumed a square planar geometry. One piece of evidence that can be used to support a tetrahedral geometry is the fact that molecules with the general formula CX2Y2 (where X and Y are either a hydrogen or a halogen atom) are always polar. Explain how this supports a tetrahedral geometry and rules out a square planar geometry. Square planar geometry Tetrahedral geometry