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Molecular Geometry and Bonding

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The basis of the VSEPR model of molecular bonding is ____________.

a. regions of electron density on an atom will organize themselves so as to maximize s-character
b. atomic orbitals of the bonding atoms must overlap for a bond to
form
c. hybrid orbitals will form as necessary to, as closely as possible,
achieve spherical symmetry
d. electron pairs in the valence shell of an atom will arrange
themselves so as to minimize repulsions
e. regions of electron density in the valence shell of an atom will
arrange themselves so as to maximize overlap

The electron-domain geometry and molecular geometry of iodine
trichloride are __________ and __________, respectively.

a. trigonal planar, trigonal planar
b. T-shaped, trigonal planar
c. octahedral, trigonal planar
d. trigonal bipyramidal, T-shaped
e. tetrahedral, trigonal pyramidal

The molecular geometry of _____ is square planar.

a. PH3
b. XeF2
c. XeF4
d. IC13
e. CC14

The molecular geometry of the right-most carbon in the molecule
below is __________.

a. trigonal bipyramidal
b. tetrahedral
c. octahedral
d. T-shaped
e. trigonal planar

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Solution Preview

The basis of the VSEPR model of molecular bonding is d. electron pairs in the valence shell of an atom will arrange themselves so as to minimize repulsions.

The electron-domain geometry and molecular geometry of iodine ...

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This solution is provided in 155 words. It provides an answer to each question and gives brief explanations for the answer.

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5) What is the hybridization of the central atom in selenium tetrabromide?

6) How many electrons are in * orbitals in the molecule O2?

7) What is the bond order in H2+?

8) The density of a sample of gas is 1.31g/L at STP (1.00atm and 273.15K). What is the average molar mass of the molecules in the gas sample? Record your answers to three significant figures.

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10) Calculate the ratio of rates of effusion of O2 versus Cl2. Record your answers to three significant figures.

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