HW QUIZ 5

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5-24 What aspect of the following Lewis structure indicates that the concept of coordinate covalency is needed to explain the bonding in the molecule?

The oxygen atom forms one bond instead of the normal two bonds.

5-74 Choose the correct answer for each of the following bonds: The first bond is completed as an example. Example: Bond identity: C − H More electronegative atom: C Atom with negative partial charge (): C Bond type: nonpolar covalent a) Bond identity: As − H 1. More electronegative atom: 2. Atom with negative partial charge (): 3. Bond type: b) Bond identity: F − P 1. More electronegative atom: 2. Atom with negative partial charge (): 3. Bond type:

a= 1. H 2. H 3. non polar covalent b= 1. F 2. F 3. polar covalent

5-12 The component elements for four binary molecular compounds are shown with different colors on the following periodic table. What is the chemical formula for the simplest compound likely to be formed with elements indicated by the same color? Type an underscore for subscripts. For example, O2 would be typed O_2 a) Yellow compound b) Red compound

a= CCl_4 b= SBr_2

5-56 Using VSEPR theory, predict the molecular geometry of the following molecules: a) H_2Te b) SiF_4

a= angular (bent) b= tetrahedral


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