Draw out Lewis Structures for CO2 and H2O. Using VSEPR Theory make models to represent the two molecules [you do not have to showdouble bonds in your model]. From your answer predict the shape of CS2 and H2S. Looking at the Periodic Table predict which of the following molecules will have the sameshape. Using VSEPR theory determine what that shape will be. NCl3 PF3 AlCl3 BrF3

Answer the questions in the table below about the shape of the sulfur trioxide (SO3) molecule. How many electron groups are around the central sulfur 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 sulfur atom? (You may need to use the scrollbar to see all the choices.) 0 (choose one) X Ś

8)A) Which of the following bonds is least polar or no polar?a) C-Ob) H-Cc) Cl-Cld) Br-Oe) They are all nonpolarB) Choose the compound with the most ionic bond.a) LiClb) KFc) NaCl d) LiFe) CsFC) Which of the following compounds contains only one unshared pair of valence electrons in its Lewis structure?a) NCl3b) H20c) CH4d) NaCle) PH3

Chemistry please draw the best lewis structure: Species Lewis structure SeBr2 NOCl2*

* If two or more atoms have the wrong number of valence electrons around them, just enter the chemical symbol for the atom as many times as necessary. if two oxygen atoms have the wrong number of electrons around them, enter the symbol O twice.

Deciding whether a Lewis structure satisfies the octet rule Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure Is the proposed Lewis structure reasonable? O Yes. O No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* Yes. No, it has the wrong number of valence electrons. fä=ö The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* O Yes. No it hae the wrong number of valence olactrons Explanation Check O 2021 McGrn P Type here to search Esc FnLk F1 F2 F3 F4 F5 F6 F7 F8 F9 %23 $4 3 6. 7 8. W E T Y Tab S ( CO LL :Z : : 0

Which of the following bonds are classified as being a polar bond. (Show your calculations and explain your answer.)           N-N    O-H     Cl-H    N-F

Consider the following ion: BrO3−. a)  Show the full electron configuration for Br.  b)  Draw the most correct Lewis structure for BrO3− and briefly explain why your Lewis structure is correct. c)  If the structure is stabilised by resonance, draw at least one of the possible resonance forms. If it is not stabilised by resonance, briefly explain why.  d)  What is the electronic geometry of BrO3−? What is its molecular shape?  e)  Does BrO3− have a dipole moment? Briefly justify your answer. f)  On average, would you expect IO3− to have longer or shorter bonds than BrO3−? Briefly explain your answer.  g)  Which of the following molecules would you expect to have the lowest vapour pressure? Briefly explain your choice. (IMAGE WITH POSSIBILITIES) h)  What is the molecular formula for Compound C? What is the empirical formula for Compound C?

Answer the questions in the table below about the shape of the chlorine trifluoride (ClF,) molecule. How many electron groups are around the central chlorine 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 chlorine atom? (You may need to use the scrollbar to see all the choices.) |(choose one)

Draw a correct Lewis structure for the following molecule where element E is in group 17: CE4  state the molecular geometry of this molecule?