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- A paper published in the research Journal Science in 2007 (S. Vallina and R. Simo, Science, Vol. 315, p. 506, January 26, 2007) reported studies of dimethylsulfide (DMS), an important green-house gas that is released by marine phytoplankton. This gas represents the largest natural source of atmospheric sulfur and a major precursor of hygroscopic (i.e., cloud-forming) particles in clean air over the remote oceans, thereby acting to reduce the amount of solar radiation that crosses the atmosphere and is absorbed by the ocean. (a) Sketch the Lewis structure of dimethylsulfide, CH3SCH3, and list the bond angles in the molecule. (b) Use electronegativities to decide where the positive and negative charges lie in the molecule. Is the molecule polar? (c) The mean seawater concentration of DMS in the ocean in the region between 15 north latitude and 15 south latitude is 2.7 nM (nanomolar). How many molecules of DMS are present in 1.0 m3 of seawater?Biacetyl and acetoin are added to margarine to make it taste more like butter. Biacetyl Acetion Complete the Lewis strucrures, predict vnlues for nil CCO bond angles, and give the hybridization of the carbon atoms in these two compounds. Must the four carbon atoms and two oxygen atoms in biacetyl lie in the same plane? How many bonds and how many bonds are there in biacetyl and acetoin?4. C/ 4 8:4 EG:tetrahedre NB:0 MGitetnatedrel EG: tetralleira 0:2 MG bent NB: 2 4 central (CH₂CH₂) polar or nonpolar? Explain. Potor, because Chorine has by higher electrones & Niets St then hydrogeme which results alim in uneque palling palling ond since it's also not symmetrica. atom? How many "central" atoms are part of methanol (CH3OH)? What are the molecular geometries of each central 2 Centro otorns H-0₁- atoms H B: 2 - NB: 2 MG bert I-N - 5. How many "central" atoms are part of ethylene glycol (HOCH₂CH₂OH), a component of antifreeze? What are the molecular geometries of each central atom? Is the molecule polar or nonpolar? Why? (Note: the modeling kits technically only contain one carbon and one oxygen via color coding, however, in this example, other spheres can be used to represent these elements within this molecule why?) 4 I U-I ... Or Ch 9-12 EG: tetrahedro B:4 66% terrehend NB:0 MG: teaters POnl X S Write electro x uzdLQYhAS) X G Predict the t X Periodic Tabl x b Answered: [F X mySigTau x M (no subject) X O Electronegat X enow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take [References] Choose the name of each of the following molecular structures. Molecular structure Name a. C. d. > b.-PDF A Modules for Creative Writin M Inbox (1,440) - allie128468@ M Inbox (11) - tara1284680 MalNaw Orgdooffw/a/NDAzODAwMrQyNzQz/details E Open with Google Docs Directons. Deteming electronegativity differences and molecular geometry. ig compounos based Molecular Geometry Linear Trigonal pyramidal linear Polarity 1. HЕг 2. PH3 3. SİS2 4. 02 5. BC13 linear Trigonal planar APPLICATION of LEARNING Directions: Determine the following. a. Molecular Geometry Q + Page 15 acerq, tue 8keltel (ilner bond) Q Poonite thee Durte Nance 8tmeture.Tlatch chemtcal terminelogy vzittecorrect definitiom is a measure of the tendency of an atom to A EectronegatVIEY attrart electrone BValence electrons Is used to show the bonding beween atome of a CEone nar motecute and the Ione pairs of eloctrons that may exist in the imolecule Bond that farms hetveen izo atoms where the electrons are unoqually distributed causing the molecuile to have a 3light electrieal dioole moment is called DLewis structure ENarpolar bond Bond that formIs between we atoms where the siecttons ate oqually distributed is caltad v Valerice elaconsthat ar notsharec wtaianuther atom are caled hathe Eltons l tha StiferimThe hybytsization of the tehtrat atomabt the geomettic shapecreates a hame dby the Patticles were hamed 2- te Fu NogeNSUINortheastern St Content OWLv2 LOnline teachina. Chomistry Questions& A. A Shert Danor: Alcohol/Foc O X Screenshot 2020-11-15 at 11.09... O O Q Q OC [References] A compound, XF4, is 39.03% fluorine by mass. Identify the element X. Scien Ch What is the molecular structure of XF4? trigonal pyramid Try Another Version 3 item attempts remaining Ch square pyramid Ch ahedron Ch trigonal bipyramid linear tetrahedron bent Ch plane triangle Ch Ch acy - Terms Ch 11:10and uith notatich. 5.Assuming that C and N have similar electronégativities raw te mdeular orbital diagram valence orbitals Include onty tle s for (N and CN Include onty the and label all tb atonic pund Pub Standakd hotatich. Also, label the moecular orebitals that are HOMO and LUMO, D.o these mclecults stable state Cexplain 1\Jour wn S 910 101 o the しBonds & Molecules DDraw e in the carbon atom's valence shell below and identify how many bonds car bon con form with otler atoms which is Identify where 6*, 8, coalent bonds t'hydrogen bouds belong in the figure below of tuo wat& (H,0)° Molecules : H H Carbon 6 protons AV H H 3) Identify, rank+ describe the four Key types of bonds in molecules: bond name description Linclude an examele) Strongest ). weakest 4). 4) Label + fill-in the figure below: aka aka A energy (ATP) e aka aka reactions Metabolism =Draw a Lewis structure for the C4Hg molecule usıng the connectivity shown in the spacefillıng model in the window. Gray = C; white = H; red = 0; blue = N; dark green = Cl; brown = Br; light green = F; purple = I; yellow = S; orange = P. %3D Use your drawing to answer the following questions. The total number of electrons in C-H bonds = The number of C-C single bonds =| The number of C=C double bonds = Previous Next The total number of unshared pairs %3DSEE MORE QUESTIONS