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- Draw the Lewis structures for the following three molecules. Rank the molecules in terms of C-N bond length, from shortest (1) to longest (3) C-N bond length. CH3NH2 CH3CN CH2NCH3ABCDE E From the compounds listed below, choose all of the compounds that contain ionic bonds. H3C A D ONa Na Cl B H-F E H3C CH3Which molecule contains carbon with a negative formal charge? CO CO2 H2CO CH4
- Draw a tentative diagram for a molecule or ion. Use electron pair for single bond linking each atom to each neighbor.Structural Isomers: In the next part you will learn a little about structural isomers and how to draw them. Structural isomers are compounds with the same molecular formula, but different bonding arrangements or connectivities. In other words, the atoms are connected in a different order. For example, there are 2 different compounds with the molecular formula C4H10. They are given below: H H-C- H -H H H HHH H- H H-C -H Η ΗΗ H H Do you see how the atoms are bonded in a different order in the 2 structures? So they are structural isomers. C3H12 Find three different molecular structures, isomers, with this formula. (Hint: Remember the C rule where every C atom needs to have 4 bonds.) C2H60 Find two different molecules with this formula. (Hint: What are the 2 ways you can C5H10 How many structural isomers can you find for this formula? (Hint: Notice that 2 H atoms have been removed. This means that there is EITHER 1 double bond OR there is a ring structure.) Try to provide at least 4…Draw a skeletal ("line") structure of this molecule: O CH3 HỌ—C—CH NH2
- Draw the Lewis structure for the compound below:(CH3)2CC(CH3)OCH3ch4 + o2 co2 + 2h2oAnswer the questions in the table below about the shape of the methanone (H₂CO) molecule. How many electron groups are around the central carbon atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central carbon atom? (You may need to use the scrollbar to see all the choices.) (choose one) X S
- Consider CH4 and H2O. What is the relationship between the valence electrons in C and O, and the number of hydrogens in the compound ?Two or more of your answers are incorrect. Use this condensed chemical structure to complete the table below. O || CH,=CH–C-H The condensed chemical structure of acrolein Some facts about the acrolein molecule: number of carbon-carbon single (CC) bonds: number of carbon-hydrogen single (CH) bonds: number of lone pairs: X S 2 1 4Is C3H7Br a polar molecule? If so, indicate the polarity of each bond and the direction of the net dipole.