4. One resonance form of a cation is shown below on the left. Complete its two resonance structures using the molecule skeleton in the middle and on the right. Draw curved arrows to show how electrons move to form the middle structure from the left structure, and to form the right structure from the middle structure. H H H N Z: H N H

4. One resonance form of a cation is shown below on the left. Complete its two resonance structures using the molecule skeleton in the middle and on the right. Draw curved arrows to show how electrons move to form the middle structure from the left structure, and to form the right structure from the middle structure. H H H N Z: H N H

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter4: Molecular Structure And Orbitals

Section: Chapter Questions

Problem 3RQ: Consider the following compounds: CO2, SO2, KrF2, SO3, NF3, IF3, CF4, SF4, XeF4, PF5, TF5, and SCl6....

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Formamide, HC(O)NH2, is prepared at high pressures from carbon monoxide and ammonia, and serves as an industrial solvent (the parentheses around the O indicate that it is bonded only to the carbon atom and that the carbon atom is also bonded to the H and the N atoms). Two resonance forms (one with formal charges) can be written for formamide. Write both resonance structures, and predict the bond angles about the carbon and nitrogen atoms for each resonance form. Are they the same? Describe how the experimental determination of the HNH bond angle could be used to indicate which resonance form is more important.
The structural formula for vitamin C is Give a molecular-level explanation why vitamin C is a water-soluble rather than a fat-soluble vitamin.
Consider the following compounds: CO2, SO2, KrF2, SO3, NF3, IF3, CF4, SF4, XeF4, PF5, TF5, and SCl6. These 12 compounds are all examples of different molecular structures. Draw the Lewis structures for each and predict the molecular structures. Predict the bond angles and the polarity of each. (A polar molecule has a net dipole moment, while a nonpolar molecule does not.) See Exercises 25 and 26 for the molecular structures based on the trigonal bipyramid and the octahedral geometries.
Indicate which of the following molecules are polar. Draw the molecular structure of each polar molecule, including the arrows that indicate the bond dipoles and the molecular dipole moment. (a) HCN (b) I2 (c) NO
Why is it less clear to see the electrons on HBrO2 molecular electron geometry than it is on something like H2O? I know there should be 20 electrons on HBrO2, but this leads me to an incorrect drawing. And with the correct drawing, I don't see where all the electrons are. It seems like there's only 10 total. What am I missing here?
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Your answer is incorrect. Decide whether the Lewis structure proposed for each molecule is reasonable or not. • Row 1: Your answer is incorrect. ● Row 2: Your answer is incorrect. molecule proposed Lewis structure CO₂ IBr, SF 3 +TE. .. :0 C 0: Br F — S — :F: Br :E: Is this a reasonable structure? If not, why not? Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. The correct number is: O No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: O Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. The correct number is: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: 0 Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. The correct number is: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: F
For the formula CH2CF2, "draw the Lewis structure in your work (.. PAfter drawing the complete Lewis structure, type in the shape, bond angle, etc. for each blank. What is the molecular shape or geometry for the carbon on the left (the C in CH2)? trigonal planer What is the molecular shape or geometry for the carbon on the right (the C in CF2)? trigonal planer What is the bond angle for the carbon on the left (the C in CH2)? Type in a plain number, but include a "<" sign in front of the number if applicable. What is the bond angle for the carbon on the right (the C in CF2)? Type in a plain number, but include a "<" sign in front of the number if applicable. What is the hybridization for the carbon on the left (the C in CH2)? Type this in without any superscript, for instance sp3 would be typed as "sp3". What is the hybridization for the carbon on the right (the C in CF2)? Type this in without any superscript, for instance sp would be typed as "sp3". Is the molecule overall polar or…
Explain what is wrong with each molecular geometry and provide the correct molecular geometry, given the numbers of lone pairs and bonding groups on the central atom. Match the words in the left column to the appropriate blanks in the sentences on the right. a bent a trigonal bipyramidal an octahedral a trigonal planar a square planar a trigonal pyramidal a tetrahedral a seesaw a linear In structure (a), four pairs of electrons give cause lone pair-bonded pair repulsions and would have Reset electron geometry. The lone pair would molecular geometry. Help In structure (b), five pairs of electrons give electron geometry. The lone pair occupies an equatorial position to minimize lone pair-bonded pair repulsions, and the molecule would have molecular geometry. In structure (c), six pairs of electrons give electron geometry. The two lone pairs would occupy opposite positions to minimize lone pair-lone pair repulsions, and the molecule would have molecular geometry.
0=c=0; Lewis electron-dot diagrams for CO2 and SO2 are given above. The molecular geometry and polarity of the two substances are the same because the molecular formulas are similar the same because C and S have similar electronegativity values different because the lone pair of electrons on the S atom make it the negative end of a dipole D different because S has a greater number of electron domains (regions of electron density) surrounding it than C has
would u help me with H2S
This compound has the formula C6H5CH3ClCH=CHCHO Each intersection of adjoining lines is a carbon atom. =C- or -C- a sketch of this molecule showing every hydrogen atom needed to complete octets and any lone pairs of electrons that are needed to complete the oxygen and chlorine atom octets Write by the following atoms the VSEPR geometry on the drawing as linear, bent, trigonal planar, bent, trigonal pyramidal or tetrahedral for the atoms: The carbon on the right hand side directly bonded to Oxygen The carbon that is CH3 on the left side The carbons in the ring (all the same)