Concept explainers
(a)
Interpretation:
The Lewis structure of the molecules difluoromethane
Concept introduction:
➢ The Lewis structure of a molecule is a representation of the molecule in which the valence electrons of the atomsareshown.
➢ The number of valence electrons of an atom is equal to the group number to which it belongs. Bonding atoms attaina stable electronic configuration and a stable atom generally has eight electrons in itsvalence shell.
➢ To attain a stable configuration, atoms share their electrons with each other.
(b)
Interpretation:
The Lewis structure of the moleculeschloroform
Concept introduction:
➢ The Lewis structure of a molecule is a representation of the molecule in which the valence electrons of the atomsareshown.
➢ The number of valence electrons of an atom is equal to the group number towhich it belongs. Bonding atoms attaina stable electronic configuration and a stable atom generally has eight electrons in itsvalence shell.
➢ To attain a stable configuration, atoms share their electrons with each other.
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ORGANIC CHEM. VOL.1+2-W/WILEYPLUS
- The curved arrow notation introduced in Section 1.6B is a powerfulmethod used by organic chemists to show the movement of electronsnot only in resonance structures, but also in chemical reactions.Because each curved arrow shows the movement of two electrons,following the curved arrows illustrates what bonds are broken andformed in a reaction. Consider the following three-step process. (a) Addcurved arrows in Step [1] to show the movement of electrons. (b) Use thecurved arrows drawn in Step [2] to identify the structure of X. X isconverted in Step [3] to phenol and HCl.arrow_forwardDraw a Lewis Structure for each of the following species and assign formal charge where appropriate. Using electronegative values from the period table that was provided identify polar covalent bonds and label the atoms δ+ and δ−. For each of the molecules indicate whether or not it has a dipole moment. (a)CH5N (b) HCN (c) H2CO (d) CH3NC(e) CH3SOCH3 (f) H6BNarrow_forwardThe curved arrow notation introduced in Section 1.6B is a powerful method used by organic chemists to show the movement of electrons not only in resonance structures, but also in chemical reactions.Because each curved arrow shows the movement of two electrons, following the curved arrows illustrates what bonds are broken and formed in a reaction. Consider the following three-step process. (a) Add curved arrows in Step [1] to show the movement of electrons. (b) Use the curved arrows drawn in Step [2] to identify the structure of X. X is converted in Step [3] to phenol and HCl.arrow_forward
- (a) Draw a line drawing for the Lewis diagram given below. Hint start converting the Lewis to a VSEPR diagram. H H H +4 H H (b) What is the line drawing for a chemical species with the condensed molecular formula -H CH3CHC(CH3)CH(CH3)2. Hint start by converting the condensed formula to a Lewis diagram....then you solve this just like Question 1(a)!. (c) Of course, concepts can be examined in reverse! Draw a VSEPR diagram THAT IS ALSO A BEST LEWIS DIAGRAM, for the chemical that has the following line drawing: H₂N IOarrow_forwardUsing just a periodic table (not a table of electronegativities), decide which of these is likely to be the most polar bond. Explain your answer! (a) C-F (b) S-F (c) Si-F (d) O-Farrow_forward1.3 3 (a) Give the structural formulae of all the chain isomers of C₂H₁2 12. (b) Give two position isomers of the molecule that has the following molecular formula: CH 10 (c) Give the two functional group isomers having the molecular formula: C₂H₂Oarrow_forward
- Linoleic acid (below) is an essential fatty acid found in many vegetable oils, such as soy, peanut, and cottonseed. A key structural feature of the molecule is the cis orientation around its two double bonds, where R1 and R2 represent two different groups that form the rest of the molecule. R, CH2 `H H' (a) How many different compounds are possible, changing only the cis/trans arrangements around these two double bonds? (b) How many are possible for a similar compound with three double bonds? R3. .CH2 R4 `H H `H H'arrow_forwardDraw the shapes of the following molecules and ions in 3-dimension. Show clearly any lone pairs of electrons on the central atom, state the number of bond pairs and lone pairs of electrons on the central atom and name the shape of the molecule or ion. (a) CH3+, methyl carbocation (b) HOBr, bromic (I) acid (c) NCl3, nitrogen trichloride Provide everything stated in the instructions for each compound.arrow_forwardDraw a Lewis structure for each species. (i) CH3OSO2OCH3 (ii) CH3C(NH)CH3 (iii) (CH3)3CNOarrow_forward
- 1) 2) NH₂ CI NH₂ Oarrow_forward16. Which of the following structures is the CORRECT resonance structure of the following. molecule: (A) (B) (C) (D) CH3- CH₂ CH3 -H CH₂CH3 CH₂CH-CH₂ CH3 CH3arrow_forwardWhat's More (A) Activity 2.1: Synthesizing concepts Directions: Complete the table below with correct answers. The first one is done for you. Lewis Structure with correct geometry Covalent Geometry Name Polar or Nonpolar? Compound :ö =c=ö: Nonpolar Linear CO2 CH4 NH3 SF4 XEOF4 SF6 What's More (B)arrow_forward
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