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(Solved): could you possibly help me on the other ones that are circled?  1.37 / Why can't molecules with ...



could you possibly help me on the other ones that are circled? 


1.37 / Why cant molecules with the following formulas exist?
(a) \( \mathrm{CH}_{5} \)
(b) \( \mathrm{C}_{2} \mathrm{H}_{8}
1.37 / Why can't molecules with the following formulas exist? (a) \( \mathrm{CH}_{5} \) (b) \( \mathrm{C}_{2} \mathrm{H}_{8} \mathrm{~N} \) (c) \( \mathrm{C}_{3} \mathrm{H}_{5} \mathrm{Br}_{2} \) \( 1.38 \) Draw a three-dimensional representation of the oxygen-bearing carbon atom in ethanol, \( \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH} \), using the standard convention of solid, wedged, and dashed lines. 1.39 Oxaloacetic acid, an important intermediate in food metabolism, has the formula \( \mathrm{C}_{4} \mathrm{H}_{4} \mathrm{O}_{5} \) and contains three \( \mathrm{C}=\mathrm{O} \) bonds and two \( \mathrm{O}-\mathrm{H} \) bonds. Propose two possible structures. 1.40 . Draw structures for the following molecules, showing lone pairs: (a) Acrylonitrile, \( \mathrm{C}_{3} \mathrm{H}_{3} \mathrm{~N} \), which contuins a carbon-carbon double bond and a carbon-nitrosen triple bond (b) Ethyl methyl ether, \( \mathrm{C}_{3} \mathrm{H}_{0} \mathrm{O} \), which contains an oxygen atom bonded to two carbons (c) Butane, \( \mathrm{C}_{4} \mathrm{H}_{10} \), which contains a chain of four carbon atoms (d) Cyclohexene, \( \mathrm{C}_{n} \mathrm{H}_{10} \), which contains a ring of six carhon atoms and one carbon-carbon double bond 1.47 Conesplete the electron-dot structure of caffeinn, showing all lonerpair eloctrons, and identify the hybridization of the indicated atoms.


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According to the guidelines I just have to do the first question, kindly reupload other parts . 1.37) CH5 - carbon
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