Write the Lewis structure for each molecule. SiH4

E is a made up element and contains 6 valence electrons Y is a made up element and contains 7 valence electrons   Calculate the number of valence electrons in EY2 Using your knowledge of Lewis structures, draw the Lewis structure of EY2   What is the electron geometry of EY2   What is the molecular shape of EY2

Predict the molecular structure, bond angles, and polarity (dipole moment) for each of the following. Formula Molecular structure Bond angles Dipole moment XeF4 KrCl4 BH3 IF3 NH4* BrF3 > > > > >

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The Lewis structure for OCl₂ shown below is incorrect. Starting from this structure, complete the correct structure.

Draw the Lewis Structure for SO2, then Draw the complete molecule (dots and lines) of NO2

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?

In the H2TeO4 molecule, the Te atom is the central atom.Draw a Lewis diagram of H2TeO4 for which all formal charges are equal to zero. How many double bonds are there in the structure that you have drawn?number of double bonds = ___01234Draw a Lewis diagram in which the octet rule is satisfied on all atoms. What are the formal charges on the following atoms in the structure that you have drawn? Te   hydroxyl O   terminal O   Based on formal charge, which is the best Lewis structure for the molecule?

What is the total number of single bonds, double bonds, and triple bonds in the best Lewis structure o C2H2? O 3 single, 0 double, 0 triple O 2 single, 0 double, 1 triple O 2 single, 1 double, 0 triple O O single, 2 double, 1 triple O1 single, 2 double, 0 triple

How many resonance structures are shown in the Lewis diagram for TeO2?