Use the following Lewis diagram for ethanol to answer the questions: H 1 H H -C -H 2 3 H H Remember that geometry refers to the geometry defined by the atoms, not the electron pairs. The geometry about atom C, is trigonal planar The ideal value of the C-C-O angle at atom C₂ is 109.5 degrees. The geometry about atom O is 3

What's the answer?

Consider the compound with the folloring lewis structure: Draw the molecule to show its correct 3 dimensional shape, then label the shape around each central atom. What are the bond angles here?

For each, draw the lewis structure, a 3D Structure including Angles, Electron Pair Geometry, Molecular Geometry, and whether it is "Polar or Non/Polar" A)   SF6 B)   CH2O

Provide the lewis structure and the 3D structure and the polarity of the molecules

Answer the following questions about the Lewis structure for the organic molecule CH3CH2CH2CN (see examples in Chapter 10) There are valence electrons. The molecule has single bonds, double bonds, and triple bonds. The three central C atoms on the left have REDS and the shape at each of these is The central C on the right has REDS and the shape is The AENC-N = 0.49 which is only slightly polar and we will consider it to be nonpolar. %3D Since there is only slightly polar covalent bond, the molecule is mostly а. О b. 1 С. 2 d. 3 е. 4 f. 5 g. 8 h. 10 i. 12 j. 14 k. 16 I. 18 m. 20 n. 24 О. 28 р. 30 q. 32 r. 34 S. 36 t. diatomic u. pyramidal v. linear w. monoatomic ions x. tetrahedral y. trigonal planar z. bent aa. 120° bb. 180° dd. 109.5° cc. no bond angles, no central atom nonpolar ее. polar ff. gg. ionic hh. C and C

Use the VSEPR model to predict the bond angles about each numbered atom. HI -H 2 3 The predicted angles about atom 1 are The predicted angles about atom 2 are The predicted angles about atom 3 are degrees. degrees. degrees.

Consider the structure below. What is the electron geometry for the circled central atom? H H HH H. -CEC-H H